2x^2-13=5

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


Simplifying
2x2 + -13 = 5

Reorder the terms:
-13 + 2x2 = 5

Solving
-13 + 2x2 = 5

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 + 2x2 = 5 + 13

Combine like terms: -13 + 13 = 0
0 + 2x2 = 5 + 13
2x2 = 5 + 13

Combine like terms: 5 + 13 = 18
2x2 = 18

Divide each side by '2'.
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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