m^2+18m+81=m

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Solution for m^2+18m+81=m equation:


Simplifying
m2 + 18m + 81 = m

Reorder the terms:
81 + 18m + m2 = m

Solving
81 + 18m + m2 = m

Solving for variable 'm'.

Reorder the terms:
81 + 18m + -1m + m2 = m + -1m

Combine like terms: 18m + -1m = 17m
81 + 17m + m2 = m + -1m

Combine like terms: m + -1m = 0
81 + 17m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-81' to each side of the equation.
81 + 17m + -81 + m2 = 0 + -81

Reorder the terms:
81 + -81 + 17m + m2 = 0 + -81

Combine like terms: 81 + -81 = 0
0 + 17m + m2 = 0 + -81
17m + m2 = 0 + -81

Combine like terms: 0 + -81 = -81
17m + m2 = -81

The m term is 17m.  Take half its coefficient (8.5).
Square it (72.25) and add it to both sides.

Add '72.25' to each side of the equation.
17m + 72.25 + m2 = -81 + 72.25

Reorder the terms:
72.25 + 17m + m2 = -81 + 72.25

Combine like terms: -81 + 72.25 = -8.75
72.25 + 17m + m2 = -8.75

Factor a perfect square on the left side:
(m + 8.5)(m + 8.5) = -8.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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