m(m-3)-m+1=2m+7

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Solution for m(m-3)-m+1=2m+7 equation:


Simplifying
m(m + -3) + -1m + 1 = 2m + 7

Reorder the terms:
m(-3 + m) + -1m + 1 = 2m + 7
(-3 * m + m * m) + -1m + 1 = 2m + 7
(-3m + m2) + -1m + 1 = 2m + 7

Reorder the terms:
1 + -3m + -1m + m2 = 2m + 7

Combine like terms: -3m + -1m = -4m
1 + -4m + m2 = 2m + 7

Reorder the terms:
1 + -4m + m2 = 7 + 2m

Solving
1 + -4m + m2 = 7 + 2m

Solving for variable 'm'.

Reorder the terms:
1 + -7 + -4m + -2m + m2 = 7 + 2m + -7 + -2m

Combine like terms: 1 + -7 = -6
-6 + -4m + -2m + m2 = 7 + 2m + -7 + -2m

Combine like terms: -4m + -2m = -6m
-6 + -6m + m2 = 7 + 2m + -7 + -2m

Reorder the terms:
-6 + -6m + m2 = 7 + -7 + 2m + -2m

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

Combine like terms: 2m + -2m = 0
-6 + -6m + m2 = 0

Begin completing the square.

Move the constant term to the right:

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

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

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

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

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 = 6 + 9

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

Combine like terms: 6 + 9 = 15
9 + -6m + m2 = 15

Factor a perfect square on the left side:
(m + -3)(m + -3) = 15

Calculate the square root of the right side: 3.872983346

Break this problem into two subproblems by setting 
(m + -3) equal to 3.872983346 and -3.872983346.

Subproblem 1

m + -3 = 3.872983346 Simplifying m + -3 = 3.872983346 Reorder the terms: -3 + m = 3.872983346 Solving -3 + m = 3.872983346 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + m = 3.872983346 + 3 Combine like terms: -3 + 3 = 0 0 + m = 3.872983346 + 3 m = 3.872983346 + 3 Combine like terms: 3.872983346 + 3 = 6.872983346 m = 6.872983346 Simplifying m = 6.872983346

Subproblem 2

m + -3 = -3.872983346 Simplifying m + -3 = -3.872983346 Reorder the terms: -3 + m = -3.872983346 Solving -3 + m = -3.872983346 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + m = -3.872983346 + 3 Combine like terms: -3 + 3 = 0 0 + m = -3.872983346 + 3 m = -3.872983346 + 3 Combine like terms: -3.872983346 + 3 = -0.872983346 m = -0.872983346 Simplifying m = -0.872983346

Solution

The solution to the problem is based on the solutions from the subproblems. m = {6.872983346, -0.872983346}

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