8m^2-16m=-3

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Solution for 8m^2-16m=-3 equation:


Simplifying
8m2 + -16m = -3

Reorder the terms:
-16m + 8m2 = -3

Solving
-16m + 8m2 = -3

Solving for variable 'm'.

Reorder the terms:
3 + -16m + 8m2 = -3 + 3

Combine like terms: -3 + 3 = 0
3 + -16m + 8m2 = 0

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

Divide each side by '8'.
0.375 + -2m + m2 = 0

Move the constant term to the right:

Add '-0.375' to each side of the equation.
0.375 + -2m + -0.375 + m2 = 0 + -0.375

Reorder the terms:
0.375 + -0.375 + -2m + m2 = 0 + -0.375

Combine like terms: 0.375 + -0.375 = 0.000
0.000 + -2m + m2 = 0 + -0.375
-2m + m2 = 0 + -0.375

Combine like terms: 0 + -0.375 = -0.375
-2m + m2 = -0.375

The m term is -2m.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2m + 1 + m2 = -0.375 + 1

Reorder the terms:
1 + -2m + m2 = -0.375 + 1

Combine like terms: -0.375 + 1 = 0.625
1 + -2m + m2 = 0.625

Factor a perfect square on the left side:
(m + -1)(m + -1) = 0.625

Calculate the square root of the right side: 0.790569415

Break this problem into two subproblems by setting 
(m + -1) equal to 0.790569415 and -0.790569415.

Subproblem 1

m + -1 = 0.790569415 Simplifying m + -1 = 0.790569415 Reorder the terms: -1 + m = 0.790569415 Solving -1 + m = 0.790569415 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + m = 0.790569415 + 1 Combine like terms: -1 + 1 = 0 0 + m = 0.790569415 + 1 m = 0.790569415 + 1 Combine like terms: 0.790569415 + 1 = 1.790569415 m = 1.790569415 Simplifying m = 1.790569415

Subproblem 2

m + -1 = -0.790569415 Simplifying m + -1 = -0.790569415 Reorder the terms: -1 + m = -0.790569415 Solving -1 + m = -0.790569415 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + m = -0.790569415 + 1 Combine like terms: -1 + 1 = 0 0 + m = -0.790569415 + 1 m = -0.790569415 + 1 Combine like terms: -0.790569415 + 1 = 0.209430585 m = 0.209430585 Simplifying m = 0.209430585

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.790569415, 0.209430585}

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