x^2-10-15=0

Solution for x^2-10-15=0 equation:

Simplifying
x2 + -10 + -15 = 0

Reorder the terms:
-10 + -15 + x2 = 0

Combine like terms: -10 + -15 = -25
-25 + x2 = 0

Solving
-25 + x2 = 0

Solving for variable 'x'.

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

Add '25' to each side of the equation.
-25 + 25 + x2 = 0 + 25

Combine like terms: -25 + 25 = 0
0 + x2 = 0 + 25
x2 = 0 + 25

Combine like terms: 0 + 25 = 25
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}