5x^2-85=40

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Solution for 5x^2-85=40 equation:


Simplifying
5x2 + -85 = 40

Reorder the terms:
-85 + 5x2 = 40

Solving
-85 + 5x2 = 40

Solving for variable 'x'.

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

Add '85' to each side of the equation.
-85 + 85 + 5x2 = 40 + 85

Combine like terms: -85 + 85 = 0
0 + 5x2 = 40 + 85
5x2 = 40 + 85

Combine like terms: 40 + 85 = 125
5x2 = 125

Divide each side by '5'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}

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