-16x^2+72+40=0

Solution for -16x^2+72+40=0 equation:

Simplifying
-16x2 + 72 + 40 = 0

Reorder the terms:
72 + 40 + -16x2 = 0

Combine like terms: 72 + 40 = 112
112 + -16x2 = 0

Solving
112 + -16x2 = 0

Solving for variable 'x'.

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

Add '-112' to each side of the equation.
112 + -112 + -16x2 = 0 + -112

Combine like terms: 112 + -112 = 0
0 + -16x2 = 0 + -112
-16x2 = 0 + -112

Combine like terms: 0 + -112 = -112
-16x2 = -112

Divide each side by '-16'.
x2 = 7

Simplifying
x2 = 7

Take the square root of each side:
x = {-2.645751311, 2.645751311}