3m^2+6m-147=0

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Solution for 3m^2+6m-147=0 equation:


Simplifying
3m2 + 6m + -147 = 0

Reorder the terms:
-147 + 6m + 3m2 = 0

Solving
-147 + 6m + 3m2 = 0

Solving for variable 'm'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-49 + 2m + m2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-49 + 2m + m2)' equal to zero and attempt to solve: Simplifying -49 + 2m + m2 = 0 Solving -49 + 2m + m2 = 0 Begin completing the square. Move the constant term to the right: Add '49' to each side of the equation. -49 + 2m + 49 + m2 = 0 + 49 Reorder the terms: -49 + 49 + 2m + m2 = 0 + 49 Combine like terms: -49 + 49 = 0 0 + 2m + m2 = 0 + 49 2m + m2 = 0 + 49 Combine like terms: 0 + 49 = 49 2m + m2 = 49 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 = 49 + 1 Reorder the terms: 1 + 2m + m2 = 49 + 1 Combine like terms: 49 + 1 = 50 1 + 2m + m2 = 50 Factor a perfect square on the left side: (m + 1)(m + 1) = 50 Calculate the square root of the right side: 7.071067812 Break this problem into two subproblems by setting (m + 1) equal to 7.071067812 and -7.071067812.

Subproblem 1

m + 1 = 7.071067812 Simplifying m + 1 = 7.071067812 Reorder the terms: 1 + m = 7.071067812 Solving 1 + m = 7.071067812 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 = 7.071067812 + -1 Combine like terms: 1 + -1 = 0 0 + m = 7.071067812 + -1 m = 7.071067812 + -1 Combine like terms: 7.071067812 + -1 = 6.071067812 m = 6.071067812 Simplifying m = 6.071067812

Subproblem 2

m + 1 = -7.071067812 Simplifying m + 1 = -7.071067812 Reorder the terms: 1 + m = -7.071067812 Solving 1 + m = -7.071067812 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 = -7.071067812 + -1 Combine like terms: 1 + -1 = 0 0 + m = -7.071067812 + -1 m = -7.071067812 + -1 Combine like terms: -7.071067812 + -1 = -8.071067812 m = -8.071067812 Simplifying m = -8.071067812

Solution

The solution to the problem is based on the solutions from the subproblems. m = {6.071067812, -8.071067812}

Solution

m = {6.071067812, -8.071067812}

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