8x^2+9-455=0

Solution for 8x^2+9-455=0 equation:

Simplifying
8x2 + 9 + -455 = 0

Reorder the terms:
9 + -455 + 8x2 = 0

Combine like terms: 9 + -455 = -446
-446 + 8x2 = 0

Solving
-446 + 8x2 = 0

Solving for variable 'x'.

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

Add '446' to each side of the equation.
-446 + 446 + 8x2 = 0 + 446

Combine like terms: -446 + 446 = 0
0 + 8x2 = 0 + 446
8x2 = 0 + 446

Combine like terms: 0 + 446 = 446
8x2 = 446

Divide each side by '8'.
x2 = 55.75

Simplifying
x2 = 55.75

Take the square root of each side:
x = {-7.466592262, 7.466592262}