x^2+11=20

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Solution for x^2+11=20 equation:


Simplifying
x2 + 11 = 20

Reorder the terms:
11 + x2 = 20

Solving
11 + x2 = 20

Solving for variable 'x'.

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

Add '-11' to each side of the equation.
11 + -11 + x2 = 20 + -11

Combine like terms: 11 + -11 = 0
0 + x2 = 20 + -11
x2 = 20 + -11

Combine like terms: 20 + -11 = 9
x2 = 9

Simplifying
x2 = 9

Take the square root of each side:
x = {-3, 3}

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