<< Chapter < Page Chapter >> Page >

Section exercises

Verbal

If division of a polynomial by a binomial results in a remainder of zero, what can be conclude?

The binomial is a factor of the polynomial.

Got questions? Get instant answers now!

If a polynomial of degree n is divided by a binomial of degree 1, what is the degree of the quotient?

Got questions? Get instant answers now!

Algebraic

For the following exercises, use long division to divide. Specify the quotient and the remainder.

( x 2 + 5 x 1 ) ÷ ( x 1 )

x + 6 + 5 x - 1 , quotient: x + 6 , remainder: 5

Got questions? Get instant answers now!

( 2 x 2 9 x 5 ) ÷ ( x 5 )

Got questions? Get instant answers now!

( 3 x 2 + 23 x + 14 ) ÷ ( x + 7 )

3 x + 2 , quotient:  3 x + 2 , remainder: 0

Got questions? Get instant answers now!

( 4 x 2 10 x + 6 ) ÷ ( 4 x + 2 )

Got questions? Get instant answers now!

( 6 x 2 25 x 25 ) ÷ ( 6 x + 5 )

x 5 , quotient: x 5 , remainder: 0

Got questions? Get instant answers now!

( x 2 1 ) ÷ ( x + 1 )

Got questions? Get instant answers now!

( 2 x 2 3 x + 2 ) ÷ ( x + 2 )

2 x 7 + 16 x + 2 , quotient: 2 x 7 , remainder: 16

Got questions? Get instant answers now!

( x 3 126 ) ÷ ( x 5 )

Got questions? Get instant answers now!

( 3 x 2 5 x + 4 ) ÷ ( 3 x + 1 )

x 2 + 6 3 x + 1 , quotient: x 2 , remainder: 6

Got questions? Get instant answers now!

( x 3 3 x 2 + 5 x 6 ) ÷ ( x 2 )

Got questions? Get instant answers now!

( 2 x 3 + 3 x 2 4 x + 15 ) ÷ ( x + 3 )

2 x 2 3 x + 5 , quotient: 2 x 2 3 x + 5 , remainder: 0

Got questions? Get instant answers now!

For the following exercises, use synthetic division to find the quotient.

( 3 x 3 2 x 2 + x 4 ) ÷ ( x + 3 )

Got questions? Get instant answers now!

( 2 x 3 6 x 2 7 x + 6 ) ÷ ( x 4 )

2 x 2 + 2 x + 1 + 10 x 4

Got questions? Get instant answers now!

( 6 x 3 10 x 2 7 x 15 ) ÷ ( x + 1 )

Got questions? Get instant answers now!

( 4 x 3 12 x 2 5 x 1 ) ÷ ( 2 x + 1 )

2 x 2 7 x + 1 2 2 x + 1

Got questions? Get instant answers now!

( 9 x 3 9 x 2 + 18 x + 5 ) ÷ ( 3 x 1 )

Got questions? Get instant answers now!

( 3 x 3 2 x 2 + x 4 ) ÷ ( x + 3 )

3 x 2 11 x + 34 106 x + 3

Got questions? Get instant answers now!

( 6 x 3 + x 2 4 ) ÷ ( 2 x 3 )

Got questions? Get instant answers now!

( 2 x 3 + 7 x 2 13 x 3 ) ÷ ( 2 x 3 )

x 2 + 5 x + 1

Got questions? Get instant answers now!

( 3 x 3 5 x 2 + 2 x + 3 ) ÷ ( x + 2 )

Got questions? Get instant answers now!

( 4 x 3 5 x 2 + 13 ) ÷ ( x + 4 )

4 x 2 21 x + 84 323 x + 4

Got questions? Get instant answers now!

( x 3 3 x + 2 ) ÷ ( x + 2 )

Got questions? Get instant answers now!

( x 3 21 x 2 + 147 x 343 ) ÷ ( x 7 )

x 2 14 x + 49

Got questions? Get instant answers now!

( x 3 15 x 2 + 75 x 125 ) ÷ ( x 5 )

Got questions? Get instant answers now!

( 9 x 3 x + 2 ) ÷ ( 3 x 1 )

3 x 2 + x + 2 3 x 1

Got questions? Get instant answers now!

( 6 x 3 x 2 + 5 x + 2 ) ÷ ( 3 x + 1 )

Got questions? Get instant answers now!

( x 4 + x 3 3 x 2 2 x + 1 ) ÷ ( x + 1 )

x 3 3 x + 1

Got questions? Get instant answers now!

( x 4 3 x 2 + 1 ) ÷ ( x 1 )

Got questions? Get instant answers now!

( x 4 + 2 x 3 3 x 2 + 2 x + 6 ) ÷ ( x + 3 )

x 3 x 2 + 2

Got questions? Get instant answers now!

( x 4 10 x 3 + 37 x 2 60 x + 36 ) ÷ ( x 2 )

Got questions? Get instant answers now!

( x 4 8 x 3 + 24 x 2 32 x + 16 ) ÷ ( x 2 )

x 3 6 x 2 + 12 x 8

Got questions? Get instant answers now!

( x 4 + 5 x 3 3 x 2 13 x + 10 ) ÷ ( x + 5 )

Got questions? Get instant answers now!

( x 4 12 x 3 + 54 x 2 108 x + 81 ) ÷ ( x 3 )

x 3 9 x 2 + 27 x 27

Got questions? Get instant answers now!

( 4 x 4 2 x 3 4 x + 2 ) ÷ ( 2 x 1 )

Got questions? Get instant answers now!

( 4 x 4 + 2 x 3 4 x 2 + 2 x + 2 ) ÷ ( 2 x + 1 )

2 x 3 2 x + 2

Got questions? Get instant answers now!

For the following exercises, use synthetic division to determine whether the first expression is a factor of the second. If it is, indicate the factorization.

x 2 , 4 x 3 3 x 2 8 x + 4

Got questions? Get instant answers now!

x 2 , 3 x 4 6 x 3 5 x + 10

Yes ( x 2 ) ( 3 x 3 5 )

Got questions? Get instant answers now!

x + 3 , 4 x 3 + 5 x 2 + 8

Got questions? Get instant answers now!

x 2 , 4 x 4 15 x 2 4

Yes ( x 2 ) ( 4 x 3 + 8 x 2 + x + 2 )

Got questions? Get instant answers now!

x 1 2 , 2 x 4 x 3 + 2 x 1

Got questions? Get instant answers now!

x + 1 3 , 3 x 4 + x 3 3 x + 1

No

Got questions? Get instant answers now!

Graphical

For the following exercises, use the graph of the third-degree polynomial and one factor to write the factored form of the polynomial suggested by the graph. The leading coefficient is one.

Factor is x 2 x + 3

Graph of a polynomial that has a x-intercept at -1.
Got questions? Get instant answers now!

Factor is ( x 2 + 2 x + 4 )

Graph of a polynomial that has a x-intercept at 1.

( x 1 ) ( x 2 + 2 x + 4 )

Got questions? Get instant answers now!

Factor is x 2 + 2 x + 5

Graph of a polynomial that has a x-intercept at 2.
Got questions? Get instant answers now!

Factor is x 2 + x + 1

Graph of a polynomial that has a x-intercept at 5.

( x 5 ) ( x 2 + x + 1 )

Got questions? Get instant answers now!

For the following exercises, use synthetic division to find the quotient and remainder.

4 x 3 33 x 2

Quotient: 4 x 2 + 8 x + 16 , remainder: 1

Got questions? Get instant answers now!

3 x 3 + 2 x 5 x 1

Quotient: 3 x 2 + 3 x + 5 , remainder: 0

Got questions? Get instant answers now!

4 x 3 x 2 12 x + 4

Got questions? Get instant answers now!

x 4 22 x + 2

Quotient: x 3 2 x 2 + 4 x 8 , remainder: 6

Got questions? Get instant answers now!

Technology

For the following exercises, use a calculator with CAS to answer the questions.

Consider x k 1 x 1 with k = 1 ,   2 ,   3. What do you expect the result to be if k = 4 ?

Got questions? Get instant answers now!

Consider x k + 1 x + 1 for k = 1 ,   3 ,   5. What do you expect the result to be if k = 7 ?

x 6 x 5 + x 4 x 3 + x 2 x + 1

Got questions? Get instant answers now!

Consider x 4 k 4 x k for k = 1 ,   2 ,   3. What do you expect the result to be if k = 4 ?

Got questions? Get instant answers now!

Consider x k x + 1 with k = 1 ,   2 ,   3. What do you expect the result to be if k = 4 ?

x 3 x 2 + x 1 + 1 x + 1

Got questions? Get instant answers now!

Consider x k x 1 with k = 1 ,   2 ,   3. What do you expect the result to be if k = 4 ?

Got questions? Get instant answers now!

Extensions

For the following exercises, use synthetic division to determine the quotient involving a complex number.

x + 1 x i

1 + 1 + i x i

Got questions? Get instant answers now!

x + 1 x + i

1 + 1 i x + i

Got questions? Get instant answers now!

x 3 + 1 x i

x 2 i x 1 + 1 i x i

Got questions? Get instant answers now!

Real-world applications

For the following exercises, use the given length and area of a rectangle to express the width algebraically.

Length is x + 5 , area is 2 x 2 + 9 x 5.

Got questions? Get instant answers now!

Length is 2 x   +   5 , area is 4 x 3 + 10 x 2 + 6 x + 15

2 x 2 + 3

Got questions? Get instant answers now!

Length is 3 x 4 , area is 6 x 4 8 x 3 + 9 x 2 9 x 4

Got questions? Get instant answers now!

For the following exercises, use the given volume of a box and its length and width to express the height of the box algebraically.

Volume is 12 x 3 + 20 x 2 21 x 36 , length is 2 x + 3 , width is 3 x 4.

2 x + 3

Got questions? Get instant answers now!

Volume is 18 x 3 21 x 2 40 x + 48 , length is 3 x 4 , width is 3 x 4.

Got questions? Get instant answers now!

Volume is 10 x 3 + 27 x 2 + 2 x 24 , length is 5 x 4 , width is 2 x + 3.

x + 2

Got questions? Get instant answers now!

Volume is 10 x 3 + 30 x 2 8 x 24 , length is 2 , width is x + 3.

Got questions? Get instant answers now!

For the following exercises, use the given volume and radius of a cylinder to express the height of the cylinder algebraically.

Volume is π ( 25 x 3 65 x 2 29 x 3 ) , radius is 5 x + 1.

x 3

Got questions? Get instant answers now!

Volume is π ( 4 x 3 + 12 x 2 15 x 50 ) , radius is 2 x + 5.

Got questions? Get instant answers now!

Volume is π ( 3 x 4 + 24 x 3 + 46 x 2 16 x 32 ) , radius is x + 4.

3 x 2 2

Got questions? Get instant answers now!

Questions & Answers

what is defense mechanism
Chinaza Reply
what is defense mechanisms
Chinaza
I'm interested in biological psychology and cognitive psychology
Tanya Reply
what does preconceived mean
sammie Reply
physiological Psychology
Nwosu Reply
How can I develope my cognitive domain
Amanyire Reply
why is communication effective
Dakolo Reply
Communication is effective because it allows individuals to share ideas, thoughts, and information with others.
effective communication can lead to improved outcomes in various settings, including personal relationships, business environments, and educational settings. By communicating effectively, individuals can negotiate effectively, solve problems collaboratively, and work towards common goals.
it starts up serve and return practice/assessments.it helps find voice talking therapy also assessments through relaxed conversation.
miss
Every time someone flushes a toilet in the apartment building, the person begins to jumb back automatically after hearing the flush, before the water temperature changes. Identify the types of learning, if it is classical conditioning identify the NS, UCS, CS and CR. If it is operant conditioning, identify the type of consequence positive reinforcement, negative reinforcement or punishment
Wekolamo Reply
please i need answer
Wekolamo
because it helps many people around the world to understand how to interact with other people and understand them well, for example at work (job).
Manix Reply
Agreed 👍 There are many parts of our brains and behaviors, we really need to get to know. Blessings for everyone and happy Sunday!
ARC
A child is a member of community not society elucidate ?
JESSY Reply
Isn't practices worldwide, be it psychology, be it science. isn't much just a false belief of control over something the mind cannot truly comprehend?
Simon Reply
compare and contrast skinner's perspective on personality development on freud
namakula Reply
Skinner skipped the whole unconscious phenomenon and rather emphasized on classical conditioning
war
explain how nature and nurture affect the development and later the productivity of an individual.
Amesalu Reply
nature is an hereditary factor while nurture is an environmental factor which constitute an individual personality. so if an individual's parent has a deviant behavior and was also brought up in an deviant environment, observation of the behavior and the inborn trait we make the individual deviant.
Samuel
I am taking this course because I am hoping that I could somehow learn more about my chosen field of interest and due to the fact that being a PsyD really ignites my passion as an individual the more I hope to learn about developing and literally explore the complexity of my critical thinking skills
Zyryn Reply
good👍
Jonathan
and having a good philosophy of the world is like a sandwich and a peanut butter 👍
Jonathan
generally amnesi how long yrs memory loss
Kelu Reply
interpersonal relationships
Abdulfatai Reply
Got questions? Join the online conversation and get instant answers!
Jobilize.com Reply
Practice Key Terms 2

Get Jobilize Job Search Mobile App in your pocket Now!

Get it on Google Play Download on the App Store Now




Source:  OpenStax, College algebra. OpenStax CNX. Feb 06, 2015 Download for free at https://legacy.cnx.org/content/col11759/1.3
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'College algebra' conversation and receive update notifications?

Ask