x*x+1=13

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Solution for x*x+1=13 equation: 


Simplifying
x * x + 1 = 13

Multiply x * x
x2 + 1 = 13

Reorder the terms:
1 + x2 = 13

Solving
1 + x2 = 13

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + x2 = 13 + -1

Combine like terms: 1 + -1 = 0
0 + x2 = 13 + -1
x2 = 13 + -1

Combine like terms: 13 + -1 = 12
x2 = 12

Simplifying
x2 = 12

Take the square root of each side:
x = {-3.464101615, 3.464101615}

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