-9X^2+36+225=0

Solution for -9X^2+36+225=0 equation:

Simplifying
-9X2 + 36 + 225 = 0

Reorder the terms:
36 + 225 + -9X2 = 0

Combine like terms: 36 + 225 = 261
261 + -9X2 = 0

Solving
261 + -9X2 = 0

Solving for variable 'X'.

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

Add '-261' to each side of the equation.
261 + -261 + -9X2 = 0 + -261

Combine like terms: 261 + -261 = 0
0 + -9X2 = 0 + -261
-9X2 = 0 + -261

Combine like terms: 0 + -261 = -261
-9X2 = -261

Divide each side by '-9'.
X2 = 29

Simplifying
X2 = 29

Take the square root of each side:
X = {-5.385164807, 5.385164807}