3=x*x+2

Solution for 3=x*x+2 equation:

Simplifying
3 = x * x + 2

Multiply x * x
3 = x2 + 2

Reorder the terms:
3 = 2 + x2

Solving
3 = 2 + x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
3 + -1x2 = 2 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
3 + -1x2 = 2 + 0
3 + -1x2 = 2

Add '-3' to each side of the equation.
3 + -3 + -1x2 = 2 + -3

Combine like terms: 3 + -3 = 0
0 + -1x2 = 2 + -3
-1x2 = 2 + -3

Combine like terms: 2 + -3 = -1
-1x2 = -1

Divide each side by '-1'.
x2 = 1

Simplifying
x2 = 1

Take the square root of each side:
x = {-1, 1}