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Question

State true or false:
If (x3)2=25, then x is 8 or 2.

A
True
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B
False
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Solution

The correct option is A True
(x3)2=25
x26x+9=25
x26x16=0
x28x+2x16=0
(x8)(x+2)=0
x=2,8

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