13-5x^2=8

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Solution for 13-5x^2=8 equation: 


Simplifying
13 + -5x2 = 8

Solving
13 + -5x2 = 8

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + -5x2 = 8 + -13

Combine like terms: 13 + -13 = 0
0 + -5x2 = 8 + -13
-5x2 = 8 + -13

Combine like terms: 8 + -13 = -5
-5x2 = -5

Divide each side by '-5'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}

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