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The solution of the equation x2 – 2x = 8 is

The solution of the equation x² – 2x = 8 is

A.
x = 0 or 2
B.
x = -2 or 4
C.
x = 2
D.
x = -4
E.
x = 2 or 4

Correct Answer: Option B

Explanation

x² – 2x = 8 = 8
x² – 2x – 8 = 0
(x² – 4x) + (2x – 8) = 0
When x + 2 = 0
x = -2, when x – 4 = 0
x = 4
-2 or 4