(m-6)(m+7)=2

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Solution for (m-6)(m+7)=2 equation:


Simplifying
(m + -6)(m + 7) = 2

Reorder the terms:
(-6 + m)(m + 7) = 2

Reorder the terms:
(-6 + m)(7 + m) = 2

Multiply (-6 + m) * (7 + m)
(-6(7 + m) + m(7 + m)) = 2
((7 * -6 + m * -6) + m(7 + m)) = 2
((-42 + -6m) + m(7 + m)) = 2
(-42 + -6m + (7 * m + m * m)) = 2
(-42 + -6m + (7m + m2)) = 2

Combine like terms: -6m + 7m = 1m
(-42 + 1m + m2) = 2

Solving
-42 + 1m + m2 = 2

Solving for variable 'm'.

Reorder the terms:
-42 + -2 + 1m + m2 = 2 + -2

Combine like terms: -42 + -2 = -44
-44 + 1m + m2 = 2 + -2

Combine like terms: 2 + -2 = 0
-44 + 1m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '44' to each side of the equation.
-44 + 1m + 44 + m2 = 0 + 44

Reorder the terms:
-44 + 44 + 1m + m2 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + 1m + m2 = 0 + 44
1m + m2 = 0 + 44

Combine like terms: 0 + 44 = 44
1m + m2 = 44

The m term is 1m.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
m + 0.25 + m2 = 44 + 0.25

Reorder the terms:
0.25 + m + m2 = 44 + 0.25

Combine like terms: 44 + 0.25 = 44.25
0.25 + m + m2 = 44.25

Factor a perfect square on the left side:
(m + 0.5)(m + 0.5) = 44.25

Calculate the square root of the right side: 6.652067348

Break this problem into two subproblems by setting 
(m + 0.5) equal to 6.652067348 and -6.652067348.

Subproblem 1

m + 0.5 = 6.652067348 Simplifying m + 0.5 = 6.652067348 Reorder the terms: 0.5 + m = 6.652067348 Solving 0.5 + m = 6.652067348 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + m = 6.652067348 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + m = 6.652067348 + -0.5 m = 6.652067348 + -0.5 Combine like terms: 6.652067348 + -0.5 = 6.152067348 m = 6.152067348 Simplifying m = 6.152067348

Subproblem 2

m + 0.5 = -6.652067348 Simplifying m + 0.5 = -6.652067348 Reorder the terms: 0.5 + m = -6.652067348 Solving 0.5 + m = -6.652067348 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + m = -6.652067348 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + m = -6.652067348 + -0.5 m = -6.652067348 + -0.5 Combine like terms: -6.652067348 + -0.5 = -7.152067348 m = -7.152067348 Simplifying m = -7.152067348

Solution

The solution to the problem is based on the solutions from the subproblems. m = {6.152067348, -7.152067348}

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