144=81+(x^2-25)

Solution for 144=81+(x^2-25) equation:

Simplifying
144 = 81 + (x2 + -25)

Reorder the terms:
144 = 81 + (-25 + x2)

Remove parenthesis around (-25 + x2)
144 = 81 + -25 + x2

Combine like terms: 81 + -25 = 56
144 = 56 + x2

Solving
144 = 56 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
144 + -1x2 = 56 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
144 + -1x2 = 56 + 0
144 + -1x2 = 56

Add '-144' to each side of the equation.
144 + -144 + -1x2 = 56 + -144

Combine like terms: 144 + -144 = 0
0 + -1x2 = 56 + -144
-1x2 = 56 + -144

Combine like terms: 56 + -144 = -88
-1x2 = -88

Divide each side by '-1'.
x2 = 88

Simplifying
x2 = 88

Take the square root of each side:
x = {-9.38083152, 9.38083152}