4x^2+24-72=0

Solution for 4x^2+24-72=0 equation:

Simplifying
4x2 + 24 + -72 = 0

Reorder the terms:
24 + -72 + 4x2 = 0

Combine like terms: 24 + -72 = -48
-48 + 4x2 = 0

Solving
-48 + 4x2 = 0

Solving for variable 'x'.

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

Add '48' to each side of the equation.
-48 + 48 + 4x2 = 0 + 48

Combine like terms: -48 + 48 = 0
0 + 4x2 = 0 + 48
4x2 = 0 + 48

Combine like terms: 0 + 48 = 48
4x2 = 48

Divide each side by '4'.
x2 = 12

Simplifying
x2 = 12

Take the square root of each side:
x = {-3.464101615, 3.464101615}