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Simplifying
4(x2 + -2) = 0
Reorder the terms:
4(-2 + x2) = 0
(-2 * 4 + x2 * 4) = 0
(-8 + 4x2) = 0
Solving
-8 + 4x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '8' to each side of the equation.
-8 + 8 + 4x2 = 0 + 8
Combine like terms: -8 + 8 = 0
0 + 4x2 = 0 + 8
4x2 = 0 + 8
Combine like terms: 0 + 8 = 8
4x2 = 8
Divide each side by '4'.
x2 = 2
Simplifying
x2 = 2
Take the square root of each side:
x = {-1.414213562, 1.414213562}
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