X(X-18)=-106

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Solution for X(X-18)=-106 equation:


Simplifying
X(X + -18) = -106

Reorder the terms:
X(-18 + X) = -106
(-18 * X + X * X) = -106
(-18X + X2) = -106

Solving
-18X + X2 = -106

Solving for variable 'X'.

Reorder the terms:
106 + -18X + X2 = -106 + 106

Combine like terms: -106 + 106 = 0
106 + -18X + X2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-106' to each side of the equation.
106 + -18X + -106 + X2 = 0 + -106

Reorder the terms:
106 + -106 + -18X + X2 = 0 + -106

Combine like terms: 106 + -106 = 0
0 + -18X + X2 = 0 + -106
-18X + X2 = 0 + -106

Combine like terms: 0 + -106 = -106
-18X + X2 = -106

The X term is -18X.  Take half its coefficient (-9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
-18X + 81 + X2 = -106 + 81

Reorder the terms:
81 + -18X + X2 = -106 + 81

Combine like terms: -106 + 81 = -25
81 + -18X + X2 = -25

Factor a perfect square on the left side:
(X + -9)(X + -9) = -25

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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