x^2-d-56=0

Solution for x^2-d-56=0 equation:

Simplifying
x2 + -1d + -56 = 0

Reorder the terms:
-56 + -1d + x2 = 0

Solving
-56 + -1d + x2 = 0

Solving for variable 'd'.

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

Add '56' to each side of the equation.
-56 + -1d + 56 + x2 = 0 + 56

Reorder the terms:
-56 + 56 + -1d + x2 = 0 + 56

Combine like terms: -56 + 56 = 0
0 + -1d + x2 = 0 + 56
-1d + x2 = 0 + 56

Combine like terms: 0 + 56 = 56
-1d + x2 = 56

Add '-1x2' to each side of the equation.
-1d + x2 + -1x2 = 56 + -1x2

Combine like terms: x2 + -1x2 = 0
-1d + 0 = 56 + -1x2
-1d = 56 + -1x2

Divide each side by '-1'.
d = -56 + x2

Simplifying
d = -56 + x2