X^2-2x+21=5

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Solution for X^2-2x+21=5 equation: 


Simplifying
X2 + -2x + 21 = 5

Reorder the terms:
21 + X2 + -2x = 5

Solving
21 + X2 + -2x = 5

Solving for variable 'X'.

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

Add '-21' to each side of the equation.
21 + X2 + -21 + -2x = 5 + -21

Reorder the terms:
21 + -21 + X2 + -2x = 5 + -21

Combine like terms: 21 + -21 = 0
0 + X2 + -2x = 5 + -21
X2 + -2x = 5 + -21

Combine like terms: 5 + -21 = -16
X2 + -2x = -16

Add '2x' to each side of the equation.
X2 + -2x + 2x = -16 + 2x

Combine like terms: -2x + 2x = 0
X2 + 0 = -16 + 2x
X2 = -16 + 2x

Simplifying
X2 = -16 + 2x

Reorder the terms:
16 + X2 + -2x = -16 + 2x + 16 + -2x

Reorder the terms:
16 + X2 + -2x = -16 + 16 + 2x + -2x

Combine like terms: -16 + 16 = 0
16 + X2 + -2x = 0 + 2x + -2x
16 + X2 + -2x = 2x + -2x

Combine like terms: 2x + -2x = 0
16 + X2 + -2x = 0

The solution to this equation could not be determined.

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