[(8m^2+3m-6)-(5m^2-5m+9)]-(m^2+m+2)=

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Solution for [(8m^2+3m-6)-(5m^2-5m+9)]-(m^2+m+2)= equation:


Simplifying
[(8m2 + 3m + -6) + -1(5m2 + -5m + 9)] + -1(m2 + m + 2) = 0

Reorder the terms:
[(-6 + 3m + 8m2) + -1(5m2 + -5m + 9)] + -1(m2 + m + 2) = 0

Remove parenthesis around (-6 + 3m + 8m2)
[-6 + 3m + 8m2 + -1(5m2 + -5m + 9)] + -1(m2 + m + 2) = 0

Reorder the terms:
[-6 + 3m + 8m2 + -1(9 + -5m + 5m2)] + -1(m2 + m + 2) = 0
[-6 + 3m + 8m2 + (9 * -1 + -5m * -1 + 5m2 * -1)] + -1(m2 + m + 2) = 0
[-6 + 3m + 8m2 + (-9 + 5m + -5m2)] + -1(m2 + m + 2) = 0

Reorder the terms:
[-6 + -9 + 3m + 5m + 8m2 + -5m2] + -1(m2 + m + 2) = 0

Combine like terms: -6 + -9 = -15
[-15 + 3m + 5m + 8m2 + -5m2] + -1(m2 + m + 2) = 0

Combine like terms: 3m + 5m = 8m
[-15 + 8m + 8m2 + -5m2] + -1(m2 + m + 2) = 0

Combine like terms: 8m2 + -5m2 = 3m2
[-15 + 8m + 3m2] + -1(m2 + m + 2) = 0

Remove brackets around [-15 + 8m + 3m2]
-15 + 8m + 3m2 + -1(m2 + m + 2) = 0

Reorder the terms:
-15 + 8m + 3m2 + -1(2 + m + m2) = 0
-15 + 8m + 3m2 + (2 * -1 + m * -1 + m2 * -1) = 0
-15 + 8m + 3m2 + (-2 + -1m + -1m2) = 0

Reorder the terms:
-15 + -2 + 8m + -1m + 3m2 + -1m2 = 0

Combine like terms: -15 + -2 = -17
-17 + 8m + -1m + 3m2 + -1m2 = 0

Combine like terms: 8m + -1m = 7m
-17 + 7m + 3m2 + -1m2 = 0

Combine like terms: 3m2 + -1m2 = 2m2
-17 + 7m + 2m2 = 0

Solving
-17 + 7m + 2m2 = 0

Solving for variable 'm'.

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

Divide each side by '2'.
-8.5 + 3.5m + m2 = 0

Move the constant term to the right:

Add '8.5' to each side of the equation.
-8.5 + 3.5m + 8.5 + m2 = 0 + 8.5

Reorder the terms:
-8.5 + 8.5 + 3.5m + m2 = 0 + 8.5

Combine like terms: -8.5 + 8.5 = 0.0
0.0 + 3.5m + m2 = 0 + 8.5
3.5m + m2 = 0 + 8.5

Combine like terms: 0 + 8.5 = 8.5
3.5m + m2 = 8.5

The m term is 3.5m.  Take half its coefficient (1.75).
Square it (3.0625) and add it to both sides.

Add '3.0625' to each side of the equation.
3.5m + 3.0625 + m2 = 8.5 + 3.0625

Reorder the terms:
3.0625 + 3.5m + m2 = 8.5 + 3.0625

Combine like terms: 8.5 + 3.0625 = 11.5625
3.0625 + 3.5m + m2 = 11.5625

Factor a perfect square on the left side:
(m + 1.75)(m + 1.75) = 11.5625

Calculate the square root of the right side: 3.400367627

Break this problem into two subproblems by setting 
(m + 1.75) equal to 3.400367627 and -3.400367627.

Subproblem 1

m + 1.75 = 3.400367627 Simplifying m + 1.75 = 3.400367627 Reorder the terms: 1.75 + m = 3.400367627 Solving 1.75 + m = 3.400367627 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + m = 3.400367627 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + m = 3.400367627 + -1.75 m = 3.400367627 + -1.75 Combine like terms: 3.400367627 + -1.75 = 1.650367627 m = 1.650367627 Simplifying m = 1.650367627

Subproblem 2

m + 1.75 = -3.400367627 Simplifying m + 1.75 = -3.400367627 Reorder the terms: 1.75 + m = -3.400367627 Solving 1.75 + m = -3.400367627 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.75' to each side of the equation. 1.75 + -1.75 + m = -3.400367627 + -1.75 Combine like terms: 1.75 + -1.75 = 0.00 0.00 + m = -3.400367627 + -1.75 m = -3.400367627 + -1.75 Combine like terms: -3.400367627 + -1.75 = -5.150367627 m = -5.150367627 Simplifying m = -5.150367627

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.650367627, -5.150367627}

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