2m^2-8m-8=-2

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


Simplifying
2m2 + -8m + -8 = -2

Reorder the terms:
-8 + -8m + 2m2 = -2

Solving
-8 + -8m + 2m2 = -2

Solving for variable 'm'.

Reorder the terms:
-8 + 2 + -8m + 2m2 = -2 + 2

Combine like terms: -8 + 2 = -6
-6 + -8m + 2m2 = -2 + 2

Combine like terms: -2 + 2 = 0
-6 + -8m + 2m2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-3 + -4m + m2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + -4m + m2)' equal to zero and attempt to solve: Simplifying -3 + -4m + m2 = 0 Solving -3 + -4m + m2 = 0 Begin completing the square. Move the constant term to the right: Add '3' to each side of the equation. -3 + -4m + 3 + m2 = 0 + 3 Reorder the terms: -3 + 3 + -4m + m2 = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -4m + m2 = 0 + 3 -4m + m2 = 0 + 3 Combine like terms: 0 + 3 = 3 -4m + m2 = 3 The m term is -4m. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4m + 4 + m2 = 3 + 4 Reorder the terms: 4 + -4m + m2 = 3 + 4 Combine like terms: 3 + 4 = 7 4 + -4m + m2 = 7 Factor a perfect square on the left side: (m + -2)(m + -2) = 7 Calculate the square root of the right side: 2.645751311 Break this problem into two subproblems by setting (m + -2) equal to 2.645751311 and -2.645751311.

Subproblem 1

m + -2 = 2.645751311 Simplifying m + -2 = 2.645751311 Reorder the terms: -2 + m = 2.645751311 Solving -2 + m = 2.645751311 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + m = 2.645751311 + 2 Combine like terms: -2 + 2 = 0 0 + m = 2.645751311 + 2 m = 2.645751311 + 2 Combine like terms: 2.645751311 + 2 = 4.645751311 m = 4.645751311 Simplifying m = 4.645751311

Subproblem 2

m + -2 = -2.645751311 Simplifying m + -2 = -2.645751311 Reorder the terms: -2 + m = -2.645751311 Solving -2 + m = -2.645751311 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + m = -2.645751311 + 2 Combine like terms: -2 + 2 = 0 0 + m = -2.645751311 + 2 m = -2.645751311 + 2 Combine like terms: -2.645751311 + 2 = -0.645751311 m = -0.645751311 Simplifying m = -0.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. m = {4.645751311, -0.645751311}

Solution

m = {4.645751311, -0.645751311}

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