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Simplifying
80x2 + -125 = 0
Reorder the terms:
-125 + 80x2 = 0
Solving
-125 + 80x2 = 0
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 + 80x2 = 0 + 125
Combine like terms: -125 + 125 = 0
0 + 80x2 = 0 + 125
80x2 = 0 + 125
Combine like terms: 0 + 125 = 125
80x2 = 125
Divide each side by '80'.
x2 = 1.5625
Simplifying
x2 = 1.5625
Take the square root of each side:
x = {-1.25, 1.25}
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