5x^2-45+15=0

Solution for 5x^2-45+15=0 equation:

Simplifying
5x2 + -45 + 15 = 0

Reorder the terms:
-45 + 15 + 5x2 = 0

Combine like terms: -45 + 15 = -30
-30 + 5x2 = 0

Solving
-30 + 5x2 = 0

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 5x2 = 0 + 30

Combine like terms: -30 + 30 = 0
0 + 5x2 = 0 + 30
5x2 = 0 + 30

Combine like terms: 0 + 30 = 30
5x2 = 30

Divide each side by '5'.
x2 = 6

Simplifying
x2 = 6

Take the square root of each side:
x = {-2.449489743, 2.449489743}