13*x^2-8=5

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


Simplifying
13x2 + -8 = 5

Reorder the terms:
-8 + 13x2 = 5

Solving
-8 + 13x2 = 5

Solving for variable 'x'.

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

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

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

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

Divide each side by '13'.
x2 = 1

Simplifying
x2 = 1

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

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