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Simplifying
125(x2 + -1) = 80
Reorder the terms:
125(-1 + x2) = 80
(-1 * 125 + x2 * 125) = 80
(-125 + 125x2) = 80
Solving
-125 + 125x2 = 80
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '125' to each side of the equation.
-125 + 125 + 125x2 = 80 + 125
Combine like terms: -125 + 125 = 0
0 + 125x2 = 80 + 125
125x2 = 80 + 125
Combine like terms: 80 + 125 = 205
125x2 = 205
Divide each side by '125'.
x2 = 1.64
Simplifying
x2 = 1.64
Take the square root of each side:
x = {-1.280624847, 1.280624847}
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