2x^2-7-72=0

Solution for 2x^2-7-72=0 equation:

Simplifying
2x2 + -7 + -72 = 0

Reorder the terms:
-7 + -72 + 2x2 = 0

Combine like terms: -7 + -72 = -79
-79 + 2x2 = 0

Solving
-79 + 2x2 = 0

Solving for variable 'x'.

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

Add '79' to each side of the equation.
-79 + 79 + 2x2 = 0 + 79

Combine like terms: -79 + 79 = 0
0 + 2x2 = 0 + 79
2x2 = 0 + 79

Combine like terms: 0 + 79 = 79
2x2 = 79

Divide each side by '2'.
x2 = 39.5

Simplifying
x2 = 39.5

Take the square root of each side:
x = {-6.284902545, 6.284902545}