X^2+18x+81=21

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Solution for X^2+18x+81=21 equation:


Simplifying
X2 + 18x + 81 = 21

Reorder the terms:
81 + X2 + 18x = 21

Solving
81 + X2 + 18x = 21

Solving for variable 'X'.

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

Add '-81' to each side of the equation.
81 + X2 + -81 + 18x = 21 + -81

Reorder the terms:
81 + -81 + X2 + 18x = 21 + -81

Combine like terms: 81 + -81 = 0
0 + X2 + 18x = 21 + -81
X2 + 18x = 21 + -81

Combine like terms: 21 + -81 = -60
X2 + 18x = -60

Add '-18x' to each side of the equation.
X2 + 18x + -18x = -60 + -18x

Combine like terms: 18x + -18x = 0
X2 + 0 = -60 + -18x
X2 = -60 + -18x

Simplifying
X2 = -60 + -18x

Reorder the terms:
60 + X2 + 18x = -60 + -18x + 60 + 18x

Reorder the terms:
60 + X2 + 18x = -60 + 60 + -18x + 18x

Combine like terms: -60 + 60 = 0
60 + X2 + 18x = 0 + -18x + 18x
60 + X2 + 18x = -18x + 18x

Combine like terms: -18x + 18x = 0
60 + X2 + 18x = 0

The solution to this equation could not be determined.

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