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144 a 6 + 90 a 3

18 a 3 (8 a 3 + 5)

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10 y 2 + 50 y + 40

10( y 2 + 5 y + 4)

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12 u 2 36 u 108

12( u 2 − 3 u − 9)

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3 a 4 24 a 3 + 18 a 2

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5 p 4 20 p 3 15 p 2

5 p 2 ( p 2 − 4 p − 3)

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11 x 6 + 44 x 5 121 x 4

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8 c 5 + 40 c 4 56 c 3

8 c 3 ( c 2 + 5 c − 7)

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−7 p 84

−7( p + 12)

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−18 b 2 66 b

−6 b (3 b + 11)

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−8 a 3 + 32 a 2

−8 a 2 ( a − 4)

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−9 b 5 + 63 b 3

−9 b 3 ( b 2 − 7)

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Everyday math

Revenue A manufacturer of microwave ovens has found that the revenue received from selling microwaves a cost of p dollars each is given by the polynomial −5 p 2 + 150 p . Factor the greatest common factor from this polynomial.

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Height of a baseball The height of a baseball hit with velocity 80 feet/second at 4 feet above ground level is −16 t 2 + 80 t + 4 , with t = the number of seconds since it was hit. Factor the greatest common factor from this polynomial.

−4(4 t 2 − 20 t − 1)

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Writing exercises

The greatest common factor of 36 and 60 is 12 . Explain what this means.

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What is the GCF of y 4 , y 5 , and y 10 ? Write a general rule that tells how to find the GCF of y a , y b , and y c .

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Self check

After completing the exercises, use this checklist to evaluate your mastery of the objectives of this section.

.

Overall, after looking at the checklist, do you think you are well-prepared for the next Chapter? Why or why not?

Chapter review exercises

Add and Subtract Polynomials

Identify Polynomials, Monomials, Binomials and Trinomials

In the following exercises, determine if each of the following polynomials is a monomial, binomial, trinomial, or other polynomial.

y 2 + 8 y 20

trinomial

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n 3 3 n 2 + 3 n 1

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Determine the Degree of Polynomials

In the following exercises, determine the degree of each polynomial.

16 x 2 40 x 25

2

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Add and Subtract Monomials

In the following exercises, add or subtract the monomials.

Add 4 n 5 , n 5 , −6 n 5

−3 n 5

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Subtract 10 x 2 from 3 x 2

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Add and Subtract Polynomials

In the following exercises, add or subtract the polynomials.

( 4 a 2 + 9 a 11 ) + ( 6 a 2 5 a + 10 )

10 a 2 + 4 a − 1

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( 8 m 2 + 12 m 5 ) ( 2 m 2 7 m 1 )

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( y 2 3 y + 12 ) + ( 5 y 2 9 )

6 y 2 − 3 y + 3

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( 5 u 2 + 8 u ) ( 4 u 7 )

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Find the sum of 8 q 3 27 and q 2 + 6 q 2

8 q 3 + q 2 + 6 q − 29

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Find the difference of x 2 + 6 x + 8 and x 2 8 x + 15

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Evaluate a Polynomial for a Given Value of the Variable

In the following exercises, evaluate each polynomial for the given value.

200 x 1 5 x 2 when x = 5

995

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200 x 1 5 x 2 when x = 0

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200 x 1 5 x 2 when x = 15

2,955

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5 + 40 x 1 2 x 2 when x = 10

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5 + 40 x 1 2 x 2 when x = −4

−163

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5 + 40 x 1 2 x 2 when x = 0

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A pair of glasses is dropped off a bridge 640 feet above a river. The polynomial −16 t 2 + 640 gives the height of the glasses t seconds after they were dropped. Find the height of the glasses when t = 6 .

64 feet

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The fuel efficiency (in miles per gallon) of a bus going at a speed of x miles per hour is given by the polynomial 1 160 x 2 + 1 2 x . Find the fuel efficiency when x = 20 mph.

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Use Multiplication Properties of Exponents

Simplify Expressions with Exponents

In the following exercises, simplify.

Simplify Expressions Using the Product Property of Exponents

In the following exercises, simplify each expression.

Simplify Expressions Using the Power Property of Exponents

In the following exercises, simplify each expression.

Questions & Answers

what is microbiology
Agebe Reply
What is a cell
Odelana Reply
what is cell
Mohammed
how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
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Source:  OpenStax, Prealgebra. OpenStax CNX. Jul 15, 2016 Download for free at http://legacy.cnx.org/content/col11756/1.9
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