54=5+x*x

Solution for 54=5+x*x equation:

Simplifying
54 = 5 + x * x

Multiply x * x
54 = 5 + x2

Solving
54 = 5 + 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.
54 + -1x2 = 5 + x2 + -1x2

Combine like terms: x2 + -1x2 = 0
54 + -1x2 = 5 + 0
54 + -1x2 = 5

Add '-54' to each side of the equation.
54 + -54 + -1x2 = 5 + -54

Combine like terms: 54 + -54 = 0
0 + -1x2 = 5 + -54
-1x2 = 5 + -54

Combine like terms: 5 + -54 = -49
-1x2 = -49

Divide each side by '-1'.
x2 = 49

Simplifying
x2 = 49

Take the square root of each side:
x = {-7, 7}