x^2+21*21=37*37

Solution for x^2+21*21=37*37 equation:

Simplifying
x2 + 21 * 21 = 37 * 37

Multiply 21 * 21
x2 + 441 = 37 * 37

Reorder the terms:
441 + x2 = 37 * 37

Multiply 37 * 37
441 + x2 = 1369

Solving
441 + x2 = 1369

Solving for variable 'x'.

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

Add '-441' to each side of the equation.
441 + -441 + x2 = 1369 + -441

Combine like terms: 441 + -441 = 0
0 + x2 = 1369 + -441
x2 = 1369 + -441

Combine like terms: 1369 + -441 = 928
x2 = 928

Simplifying
x2 = 928

Take the square root of each side:
x = {-30.463092423, 30.463092423}