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Simplifying
4x2 + -36 = 160
Reorder the terms:
-36 + 4x2 = 160
Solving
-36 + 4x2 = 160
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '36' to each side of the equation.
-36 + 36 + 4x2 = 160 + 36
Combine like terms: -36 + 36 = 0
0 + 4x2 = 160 + 36
4x2 = 160 + 36
Combine like terms: 160 + 36 = 196
4x2 = 196
Divide each side by '4'.
x2 = 49
Simplifying
x2 = 49
Take the square root of each side:
x = {-7, 7}
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