X^2-21x+82=0

Solution for X^2-21x+82=0 equation:

Simplifying
X2 + -21x + 82 = 0

Reorder the terms:
82 + X2 + -21x = 0

Solving
82 + X2 + -21x = 0

Solving for variable 'X'.

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

Add '-82' to each side of the equation.
82 + X2 + -82 + -21x = 0 + -82

Reorder the terms:
82 + -82 + X2 + -21x = 0 + -82

Combine like terms: 82 + -82 = 0
0 + X2 + -21x = 0 + -82
X2 + -21x = 0 + -82

Combine like terms: 0 + -82 = -82
X2 + -21x = -82

Add '21x' to each side of the equation.
X2 + -21x + 21x = -82 + 21x

Combine like terms: -21x + 21x = 0
X2 + 0 = -82 + 21x
X2 = -82 + 21x

Simplifying
X2 = -82 + 21x

Reorder the terms:
82 + X2 + -21x = -82 + 21x + 82 + -21x

Reorder the terms:
82 + X2 + -21x = -82 + 82 + 21x + -21x

Combine like terms: -82 + 82 = 0
82 + X2 + -21x = 0 + 21x + -21x
82 + X2 + -21x = 21x + -21x

Combine like terms: 21x + -21x = 0
82 + X2 + -21x = 0

The solution to this equation could not be determined.