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Simplifying
4x2 + -216 = -108
Reorder the terms:
-216 + 4x2 = -108
Solving
-216 + 4x2 = -108
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '216' to each side of the equation.
-216 + 216 + 4x2 = -108 + 216
Combine like terms: -216 + 216 = 0
0 + 4x2 = -108 + 216
4x2 = -108 + 216
Combine like terms: -108 + 216 = 108
4x2 = 108
Divide each side by '4'.
x2 = 27
Simplifying
x2 = 27
Take the square root of each side:
x = {-5.196152423, 5.196152423}
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