x*x-72+16=

Solution for x*x-72+16= equation:

Simplifying
x * x + -72 + 16 = 0

Multiply x * x
x2 + -72 + 16 = 0

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

Combine like terms: -72 + 16 = -56
-56 + x2 = 0

Solving
-56 + x2 = 0

Solving for variable 'x'.

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

Add '56' to each side of the equation.
-56 + 56 + x2 = 0 + 56

Combine like terms: -56 + 56 = 0
0 + x2 = 0 + 56
x2 = 0 + 56

Combine like terms: 0 + 56 = 56
x2 = 56

Simplifying
x2 = 56

Take the square root of each side:
x = {-7.483314774, 7.483314774}