28=x^2+3

Solution for 28=x^2+3 equation:

Simplifying
28 = x2 + 3

Reorder the terms:
28 = 3 + x2

Solving
28 = 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.
28 + -1x2 = 3 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
28 + -1x2 = 3 + 0
28 + -1x2 = 3

Add '-28' to each side of the equation.
28 + -28 + -1x2 = 3 + -28

Combine like terms: 28 + -28 = 0
0 + -1x2 = 3 + -28
-1x2 = 3 + -28

Combine like terms: 3 + -28 = -25
-1x2 = -25

Divide each side by '-1'.
x2 = 25

Simplifying
x2 = 25

Take the square root of each side:
x = {-5, 5}