x*x+2=15

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Solution for x*x+2=15 equation: 


Simplifying
x * x + 2 = 15

Multiply x * x
x2 + 2 = 15

Reorder the terms:
2 + x2 = 15

Solving
2 + x2 = 15

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + x2 = 15 + -2

Combine like terms: 2 + -2 = 0
0 + x2 = 15 + -2
x2 = 15 + -2

Combine like terms: 15 + -2 = 13
x2 = 13

Simplifying
x2 = 13

Take the square root of each side:
x = {-3.605551275, 3.605551275}

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