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Simplifying
4x2 + -20 = 180
Reorder the terms:
-20 + 4x2 = 180
Solving
-20 + 4x2 = 180
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '20' to each side of the equation.
-20 + 20 + 4x2 = 180 + 20
Combine like terms: -20 + 20 = 0
0 + 4x2 = 180 + 20
4x2 = 180 + 20
Combine like terms: 180 + 20 = 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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