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A2C
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Chapter Ch2
>
Lesson 2.1.6
> Problem 2-90
2-90.
Answer (a):
y
(3
y
+ 6)
Answer (c):
(
x
+ 2) (
x
− 2)
Answer (b):
(3
x
+ 2) (3
x
− 2)
Answer (d):
(
w
− 2) (
w
− 3)
