5x^2-300=15

Solution for 5x^2-300=15 equation:

Simplifying
5x2 + -300 = 15

Reorder the terms:
-300 + 5x2 = 15

Solving
-300 + 5x2 = 15

Solving for variable 'x'.

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

Add '300' to each side of the equation.
-300 + 300 + 5x2 = 15 + 300

Combine like terms: -300 + 300 = 0
0 + 5x2 = 15 + 300
5x2 = 15 + 300

Combine like terms: 15 + 300 = 315
5x2 = 315

Divide each side by '5'.
x2 = 63

Simplifying
x2 = 63

Take the square root of each side:
x = {-7.937253933, 7.937253933}