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Simplifying
180 = 5x * 5x
Reorder the terms for easier multiplication:
180 = 5 * 5x * x
Multiply 5 * 5
180 = 25x * x
Multiply x * x
180 = 25x2
Solving
180 = 25x2
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-25x2' to each side of the equation.
180 + -25x2 = 25x2 + -25x2
Combine like terms: 25x2 + -25x2 = 0
180 + -25x2 = 0
Add '-180' to each side of the equation.
180 + -180 + -25x2 = 0 + -180
Combine like terms: 180 + -180 = 0
0 + -25x2 = 0 + -180
-25x2 = 0 + -180
Combine like terms: 0 + -180 = -180
-25x2 = -180
Divide each side by '-25'.
x2 = 7.2
Simplifying
x2 = 7.2
Take the square root of each side:
x = {-2.683281573, 2.683281573}
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