2x^2-15=5

Solution for 2x^2-15=5 equation:

Simplifying
2x2 + -15 = 5

Reorder the terms:
-15 + 2x2 = 5

Solving
-15 + 2x2 = 5

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 2x2 = 5 + 15

Combine like terms: -15 + 15 = 0
0 + 2x2 = 5 + 15
2x2 = 5 + 15

Combine like terms: 5 + 15 = 20
2x2 = 20

Divide each side by '2'.
x2 = 10

Simplifying
x2 = 10

Take the square root of each side:
x = {-3.16227766, 3.16227766}