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Simplifying
2x2 + -256 = 8
Reorder the terms:
-256 + 2x2 = 8
Solving
-256 + 2x2 = 8
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '256' to each side of the equation.
-256 + 256 + 2x2 = 8 + 256
Combine like terms: -256 + 256 = 0
0 + 2x2 = 8 + 256
2x2 = 8 + 256
Combine like terms: 8 + 256 = 264
2x2 = 264
Divide each side by '2'.
x2 = 132
Simplifying
x2 = 132
Take the square root of each side:
x = {-11.489125293, 11.489125293}
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