3x^2-40-225=0

Solution for 3x^2-40-225=0 equation:

Simplifying
3x2 + -40 + -225 = 0

Reorder the terms:
-40 + -225 + 3x2 = 0

Combine like terms: -40 + -225 = -265
-265 + 3x2 = 0

Solving
-265 + 3x2 = 0

Solving for variable 'x'.

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

Add '265' to each side of the equation.
-265 + 265 + 3x2 = 0 + 265

Combine like terms: -265 + 265 = 0
0 + 3x2 = 0 + 265
3x2 = 0 + 265

Combine like terms: 0 + 265 = 265
3x2 = 265

Divide each side by '3'.
x2 = 88.33333333

Simplifying
x2 = 88.33333333

Take the square root of each side:
x = {-9.398581453, 9.398581453}