-9x^2+31=0

Solution for -9x^2+31=0 equation:

Simplifying
-9x2 + 31 = 0

Reorder the terms:
31 + -9x2 = 0

Solving
31 + -9x2 = 0

Solving for variable 'x'.

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

Add '-31' to each side of the equation.
31 + -31 + -9x2 = 0 + -31

Combine like terms: 31 + -31 = 0
0 + -9x2 = 0 + -31
-9x2 = 0 + -31

Combine like terms: 0 + -31 = -31
-9x2 = -31

Divide each side by '-9'.
x2 = 3.444444444

Simplifying
x2 = 3.444444444

Take the square root of each side:
x = {-1.855921454, 1.855921454}