X^2+21x+121=0

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Solution for X^2+21x+121=0 equation:


Simplifying
X2 + 21x + 121 = 0

Reorder the terms:
121 + X2 + 21x = 0

Solving
121 + X2 + 21x = 0

Solving for variable 'X'.

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

Add '-121' to each side of the equation.
121 + X2 + -121 + 21x = 0 + -121

Reorder the terms:
121 + -121 + X2 + 21x = 0 + -121

Combine like terms: 121 + -121 = 0
0 + X2 + 21x = 0 + -121
X2 + 21x = 0 + -121

Combine like terms: 0 + -121 = -121
X2 + 21x = -121

Add '-21x' to each side of the equation.
X2 + 21x + -21x = -121 + -21x

Combine like terms: 21x + -21x = 0
X2 + 0 = -121 + -21x
X2 = -121 + -21x

Simplifying
X2 = -121 + -21x

Reorder the terms:
121 + X2 + 21x = -121 + -21x + 121 + 21x

Reorder the terms:
121 + X2 + 21x = -121 + 121 + -21x + 21x

Combine like terms: -121 + 121 = 0
121 + X2 + 21x = 0 + -21x + 21x
121 + X2 + 21x = -21x + 21x

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

The solution to this equation could not be determined.

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