9x^2-65-144=0

Solution for 9x^2-65-144=0 equation:

Simplifying
9x2 + -65 + -144 = 0

Reorder the terms:
-65 + -144 + 9x2 = 0

Combine like terms: -65 + -144 = -209
-209 + 9x2 = 0

Solving
-209 + 9x2 = 0

Solving for variable 'x'.

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

Add '209' to each side of the equation.
-209 + 209 + 9x2 = 0 + 209

Combine like terms: -209 + 209 = 0
0 + 9x2 = 0 + 209
9x2 = 0 + 209

Combine like terms: 0 + 209 = 209
9x2 = 209

Divide each side by '9'.
x2 = 23.22222222

Simplifying
x2 = 23.22222222

Take the square root of each side:
x = {-4.818944098, 4.818944098}