15m=2m^2-16

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Solution for 15m=2m^2-16 equation:


Simplifying
15m = 2m2 + -16

Reorder the terms:
15m = -16 + 2m2

Solving
15m = -16 + 2m2

Solving for variable 'm'.

Reorder the terms:
16 + 15m + -2m2 = -16 + 2m2 + 16 + -2m2

Reorder the terms:
16 + 15m + -2m2 = -16 + 16 + 2m2 + -2m2

Combine like terms: -16 + 16 = 0
16 + 15m + -2m2 = 0 + 2m2 + -2m2
16 + 15m + -2m2 = 2m2 + -2m2

Combine like terms: 2m2 + -2m2 = 0
16 + 15m + -2m2 = 0

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

Divide each side by '-2'.
-8 + -7.5m + m2 = 0

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + -7.5m + 8 + m2 = 0 + 8

Reorder the terms:
-8 + 8 + -7.5m + m2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + -7.5m + m2 = 0 + 8
-7.5m + m2 = 0 + 8

Combine like terms: 0 + 8 = 8
-7.5m + m2 = 8

The m term is -7.5m.  Take half its coefficient (-3.75).
Square it (14.0625) and add it to both sides.

Add '14.0625' to each side of the equation.
-7.5m + 14.0625 + m2 = 8 + 14.0625

Reorder the terms:
14.0625 + -7.5m + m2 = 8 + 14.0625

Combine like terms: 8 + 14.0625 = 22.0625
14.0625 + -7.5m + m2 = 22.0625

Factor a perfect square on the left side:
(m + -3.75)(m + -3.75) = 22.0625

Calculate the square root of the right side: 4.697073557

Break this problem into two subproblems by setting 
(m + -3.75) equal to 4.697073557 and -4.697073557.

Subproblem 1

m + -3.75 = 4.697073557 Simplifying m + -3.75 = 4.697073557 Reorder the terms: -3.75 + m = 4.697073557 Solving -3.75 + m = 4.697073557 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3.75' to each side of the equation. -3.75 + 3.75 + m = 4.697073557 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 0.00 + m = 4.697073557 + 3.75 m = 4.697073557 + 3.75 Combine like terms: 4.697073557 + 3.75 = 8.447073557 m = 8.447073557 Simplifying m = 8.447073557

Subproblem 2

m + -3.75 = -4.697073557 Simplifying m + -3.75 = -4.697073557 Reorder the terms: -3.75 + m = -4.697073557 Solving -3.75 + m = -4.697073557 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3.75' to each side of the equation. -3.75 + 3.75 + m = -4.697073557 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 0.00 + m = -4.697073557 + 3.75 m = -4.697073557 + 3.75 Combine like terms: -4.697073557 + 3.75 = -0.947073557 m = -0.947073557 Simplifying m = -0.947073557

Solution

The solution to the problem is based on the solutions from the subproblems. m = {8.447073557, -0.947073557}

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