1. If A B A B - A B what is 3 2 1 Freya Patel Math Practice Test

Question 1 / 9: 1. If A $ B = A * B - ( A + B), what is 3 $ (2 $ 1)?

A -5

B -3

C 0

D 1

E 4

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Explanation:

First, use the order of operations to find the parenthetical value of (2 $ 1), which is 2*1-3 or -1

Next, plug in -1 for (2 $ 1) to find 3 $ -1 = 3 *-1 - (3 - 1) = -3 - 2 = -5

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