(6m^2+2m-7)-(6m^2-5m+1)-(m^2+m+8)=

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Solution for (6m^2+2m-7)-(6m^2-5m+1)-(m^2+m+8)= equation:


Simplifying
(6m2 + 2m + -7) + -1(6m2 + -5m + 1) + -1(m2 + m + 8) = 0

Reorder the terms:
(-7 + 2m + 6m2) + -1(6m2 + -5m + 1) + -1(m2 + m + 8) = 0

Remove parenthesis around (-7 + 2m + 6m2)
-7 + 2m + 6m2 + -1(6m2 + -5m + 1) + -1(m2 + m + 8) = 0

Reorder the terms:
-7 + 2m + 6m2 + -1(1 + -5m + 6m2) + -1(m2 + m + 8) = 0
-7 + 2m + 6m2 + (1 * -1 + -5m * -1 + 6m2 * -1) + -1(m2 + m + 8) = 0
-7 + 2m + 6m2 + (-1 + 5m + -6m2) + -1(m2 + m + 8) = 0

Reorder the terms:
-7 + 2m + 6m2 + -1 + 5m + -6m2 + -1(8 + m + m2) = 0
-7 + 2m + 6m2 + -1 + 5m + -6m2 + (8 * -1 + m * -1 + m2 * -1) = 0
-7 + 2m + 6m2 + -1 + 5m + -6m2 + (-8 + -1m + -1m2) = 0

Reorder the terms:
-7 + -1 + -8 + 2m + 5m + -1m + 6m2 + -6m2 + -1m2 = 0

Combine like terms: -7 + -1 = -8
-8 + -8 + 2m + 5m + -1m + 6m2 + -6m2 + -1m2 = 0

Combine like terms: -8 + -8 = -16
-16 + 2m + 5m + -1m + 6m2 + -6m2 + -1m2 = 0

Combine like terms: 2m + 5m = 7m
-16 + 7m + -1m + 6m2 + -6m2 + -1m2 = 0

Combine like terms: 7m + -1m = 6m
-16 + 6m + 6m2 + -6m2 + -1m2 = 0

Combine like terms: 6m2 + -6m2 = 0
-16 + 6m + 0 + -1m2 = 0
-16 + 6m + -1m2 = 0

Solving
-16 + 6m + -1m2 = 0

Solving for variable 'm'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
16 + -6m + m2 = 0

Move the constant term to the right:

Add '-16' to each side of the equation.
16 + -6m + -16 + m2 = 0 + -16

Reorder the terms:
16 + -16 + -6m + m2 = 0 + -16

Combine like terms: 16 + -16 = 0
0 + -6m + m2 = 0 + -16
-6m + m2 = 0 + -16

Combine like terms: 0 + -16 = -16
-6m + m2 = -16

The m term is -6m.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6m + 9 + m2 = -16 + 9

Reorder the terms:
9 + -6m + m2 = -16 + 9

Combine like terms: -16 + 9 = -7
9 + -6m + m2 = -7

Factor a perfect square on the left side:
(m + -3)(m + -3) = -7

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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