2m^2+8m=16

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Solution for 2m^2+8m=16 equation:


Simplifying
2m2 + 8m = 16

Reorder the terms:
8m + 2m2 = 16

Solving
8m + 2m2 = 16

Solving for variable 'm'.

Reorder the terms:
-16 + 8m + 2m2 = 16 + -16

Combine like terms: 16 + -16 = 0
-16 + 8m + 2m2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-8 + 4m + m2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-8 + 4m + m2)' equal to zero and attempt to solve: Simplifying -8 + 4m + m2 = 0 Solving -8 + 4m + m2 = 0 Begin completing the square. Move the constant term to the right: Add '8' to each side of the equation. -8 + 4m + 8 + m2 = 0 + 8 Reorder the terms: -8 + 8 + 4m + m2 = 0 + 8 Combine like terms: -8 + 8 = 0 0 + 4m + m2 = 0 + 8 4m + m2 = 0 + 8 Combine like terms: 0 + 8 = 8 4m + m2 = 8 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 = 8 + 4 Reorder the terms: 4 + 4m + m2 = 8 + 4 Combine like terms: 8 + 4 = 12 4 + 4m + m2 = 12 Factor a perfect square on the left side: (m + 2)(m + 2) = 12 Calculate the square root of the right side: 3.464101615 Break this problem into two subproblems by setting (m + 2) equal to 3.464101615 and -3.464101615.

Subproblem 1

m + 2 = 3.464101615 Simplifying m + 2 = 3.464101615 Reorder the terms: 2 + m = 3.464101615 Solving 2 + m = 3.464101615 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 = 3.464101615 + -2 Combine like terms: 2 + -2 = 0 0 + m = 3.464101615 + -2 m = 3.464101615 + -2 Combine like terms: 3.464101615 + -2 = 1.464101615 m = 1.464101615 Simplifying m = 1.464101615

Subproblem 2

m + 2 = -3.464101615 Simplifying m + 2 = -3.464101615 Reorder the terms: 2 + m = -3.464101615 Solving 2 + m = -3.464101615 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 = -3.464101615 + -2 Combine like terms: 2 + -2 = 0 0 + m = -3.464101615 + -2 m = -3.464101615 + -2 Combine like terms: -3.464101615 + -2 = -5.464101615 m = -5.464101615 Simplifying m = -5.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.464101615, -5.464101615}

Solution

m = {1.464101615, -5.464101615}

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