SUBSTITUTION Flashcards by Aaron Wilkins

Q

Find the value of 4a^2-3b when
a=3
b=7

A

do (a^2) first
3x3=9
4x9=36
3x7=21
36 -21=15

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Q

Find the value of 6c-5d when
C= -4
D= -5

A

6x-4=-24
5x-5=-25
-24- -25=1

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