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Simplifying
4x2 + -64 = 136
Reorder the terms:
-64 + 4x2 = 136
Solving
-64 + 4x2 = 136
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '64' to each side of the equation.
-64 + 64 + 4x2 = 136 + 64
Combine like terms: -64 + 64 = 0
0 + 4x2 = 136 + 64
4x2 = 136 + 64
Combine like terms: 136 + 64 = 200
4x2 = 200
Divide each side by '4'.
x2 = 50
Simplifying
x2 = 50
Take the square root of each side:
x = {-7.071067812, 7.071067812}
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