4x^2+72=320

Solution for 4x^2+72=320 equation:

Simplifying
4x2 + 72 = 320

Reorder the terms:
72 + 4x2 = 320

Solving
72 + 4x2 = 320

Solving for variable 'x'.

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

Add '-72' to each side of the equation.
72 + -72 + 4x2 = 320 + -72

Combine like terms: 72 + -72 = 0
0 + 4x2 = 320 + -72
4x2 = 320 + -72

Combine like terms: 320 + -72 = 248
4x2 = 248

Divide each side by '4'.
x2 = 62

Simplifying
x2 = 62

Take the square root of each side:
x = {-7.874007874, 7.874007874}