x^2+45=81

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Solution for x^2+45=81 equation: 


Simplifying
x2 + 45 = 81

Reorder the terms:
45 + x2 = 81

Solving
45 + x2 = 81

Solving for variable 'x'.

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

Add '-45' to each side of the equation.
45 + -45 + x2 = 81 + -45

Combine like terms: 45 + -45 = 0
0 + x2 = 81 + -45
x2 = 81 + -45

Combine like terms: 81 + -45 = 36
x2 = 36

Simplifying
x2 = 36

Take the square root of each side:
x = {-6, 6}

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