0.666666667x^2+25=87

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Solution for 0.666666667x^2+25=87 equation: 


Simplifying
0.666666667x2 + 25 = 87

Reorder the terms:
25 + 0.666666667x2 = 87

Solving
25 + 0.666666667x2 = 87

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-25' to each side of the equation.
25 + -25 + 0.666666667x2 = 87 + -25

Combine like terms: 25 + -25 = 0
0 + 0.666666667x2 = 87 + -25
0.666666667x2 = 87 + -25

Combine like terms: 87 + -25 = 62
0.666666667x2 = 62

Divide each side by '0.666666667'.
x2 = 92.99999995

Simplifying
x2 = 92.99999995

Take the square root of each side:
x = {-9.643650758, 9.643650758}

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