x*x+3=20

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Solution for x*x+3=20 equation: 


Simplifying
x * x + 3 = 20

Multiply x * x
x2 + 3 = 20

Reorder the terms:
3 + x2 = 20

Solving
3 + x2 = 20

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + x2 = 20 + -3

Combine like terms: 3 + -3 = 0
0 + x2 = 20 + -3
x2 = 20 + -3

Combine like terms: 20 + -3 = 17
x2 = 17

Simplifying
x2 = 17

Take the square root of each side:
x = {-4.123105626, 4.123105626}

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