-4m(3m+5)=-29m-20

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Solution for -4m(3m+5)=-29m-20 equation:


Simplifying
-4m(3m + 5) = -29m + -20

Reorder the terms:
-4m(5 + 3m) = -29m + -20
(5 * -4m + 3m * -4m) = -29m + -20
(-20m + -12m2) = -29m + -20

Reorder the terms:
-20m + -12m2 = -20 + -29m

Solving
-20m + -12m2 = -20 + -29m

Solving for variable 'm'.

Reorder the terms:
20 + -20m + 29m + -12m2 = -20 + -29m + 20 + 29m

Combine like terms: -20m + 29m = 9m
20 + 9m + -12m2 = -20 + -29m + 20 + 29m

Reorder the terms:
20 + 9m + -12m2 = -20 + 20 + -29m + 29m

Combine like terms: -20 + 20 = 0
20 + 9m + -12m2 = 0 + -29m + 29m
20 + 9m + -12m2 = -29m + 29m

Combine like terms: -29m + 29m = 0
20 + 9m + -12m2 = 0

Begin completing the square.  Divide all terms by
-12 the coefficient of the squared term: 

Divide each side by '-12'.
-1.666666667 + -0.75m + m2 = 0

Move the constant term to the right:

Add '1.666666667' to each side of the equation.
-1.666666667 + -0.75m + 1.666666667 + m2 = 0 + 1.666666667

Reorder the terms:
-1.666666667 + 1.666666667 + -0.75m + m2 = 0 + 1.666666667

Combine like terms: -1.666666667 + 1.666666667 = 0.000000000
0.000000000 + -0.75m + m2 = 0 + 1.666666667
-0.75m + m2 = 0 + 1.666666667

Combine like terms: 0 + 1.666666667 = 1.666666667
-0.75m + m2 = 1.666666667

The m term is -0.75m.  Take half its coefficient (-0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
-0.75m + 0.140625 + m2 = 1.666666667 + 0.140625

Reorder the terms:
0.140625 + -0.75m + m2 = 1.666666667 + 0.140625

Combine like terms: 1.666666667 + 0.140625 = 1.807291667
0.140625 + -0.75m + m2 = 1.807291667

Factor a perfect square on the left side:
(m + -0.375)(m + -0.375) = 1.807291667

Calculate the square root of the right side: 1.344355484

Break this problem into two subproblems by setting 
(m + -0.375) equal to 1.344355484 and -1.344355484.

Subproblem 1

m + -0.375 = 1.344355484 Simplifying m + -0.375 = 1.344355484 Reorder the terms: -0.375 + m = 1.344355484 Solving -0.375 + m = 1.344355484 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + m = 1.344355484 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + m = 1.344355484 + 0.375 m = 1.344355484 + 0.375 Combine like terms: 1.344355484 + 0.375 = 1.719355484 m = 1.719355484 Simplifying m = 1.719355484

Subproblem 2

m + -0.375 = -1.344355484 Simplifying m + -0.375 = -1.344355484 Reorder the terms: -0.375 + m = -1.344355484 Solving -0.375 + m = -1.344355484 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + m = -1.344355484 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + m = -1.344355484 + 0.375 m = -1.344355484 + 0.375 Combine like terms: -1.344355484 + 0.375 = -0.969355484 m = -0.969355484 Simplifying m = -0.969355484

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.719355484, -0.969355484}

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