8=x^2+3

Solution for 8=x^2+3 equation:

Simplifying
8 = x2 + 3

Reorder the terms:
8 = 3 + x2

Solving
8 = 3 + 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.
8 + -1x2 = 3 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
8 + -1x2 = 3 + 0
8 + -1x2 = 3

Add '-8' to each side of the equation.
8 + -8 + -1x2 = 3 + -8

Combine like terms: 8 + -8 = 0
0 + -1x2 = 3 + -8
-1x2 = 3 + -8

Combine like terms: 3 + -8 = -5
-1x2 = -5

Divide each side by '-1'.
x2 = 5

Simplifying
x2 = 5

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