15+x^2=20

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Solution for 15+x^2=20 equation: 


Simplifying
15 + x2 = 20

Solving
15 + x2 = 20

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + x2 = 20 + -15

Combine like terms: 15 + -15 = 0
0 + x2 = 20 + -15
x2 = 20 + -15

Combine like terms: 20 + -15 = 5
x2 = 5

Simplifying
x2 = 5

Take the square root of each side:
x = {-2.236067978, 2.236067978}

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