5x^2-31-72=0

Solution for 5x^2-31-72=0 equation:

Simplifying
5x2 + -31 + -72 = 0

Reorder the terms:
-31 + -72 + 5x2 = 0

Combine like terms: -31 + -72 = -103
-103 + 5x2 = 0

Solving
-103 + 5x2 = 0

Solving for variable 'x'.

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

Add '103' to each side of the equation.
-103 + 103 + 5x2 = 0 + 103

Combine like terms: -103 + 103 = 0
0 + 5x2 = 0 + 103
5x2 = 0 + 103

Combine like terms: 0 + 103 = 103
5x2 = 103

Divide each side by '5'.
x2 = 20.6

Simplifying
x2 = 20.6

Take the square root of each side:
x = {-4.538722287, 4.538722287}