Multiple Choice Question (MCQ)
If (x + 1)^2 − (x − 1)^2 = 32, what is the value of x ?
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×
4
-
×
6
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✓
8
-
×
10
-
×
12
If (x + 1)^2 − (x − 1)^2 = 32, what is the value of x ?
4
6
8
10
12
Given
(x + 1)^2 − (x − 1)^2 = 32
Using the difference of squares formula to simplify the left hand side
2x\cdot 2 =32
It turns out the equation is a linear equation. Solving for x gives
Therefore, C is correct