5m+2m(m-5)=17

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Solution for 5m+2m(m-5)=17 equation:


Simplifying
5m + 2m(m + -5) = 17

Reorder the terms:
5m + 2m(-5 + m) = 17
5m + (-5 * 2m + m * 2m) = 17
5m + (-10m + 2m2) = 17

Combine like terms: 5m + -10m = -5m
-5m + 2m2 = 17

Solving
-5m + 2m2 = 17

Solving for variable 'm'.

Reorder the terms:
-17 + -5m + 2m2 = 17 + -17

Combine like terms: 17 + -17 = 0
-17 + -5m + 2m2 = 0

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

Divide each side by '2'.
-8.5 + -2.5m + m2 = 0

Move the constant term to the right:

Add '8.5' to each side of the equation.
-8.5 + -2.5m + 8.5 + m2 = 0 + 8.5

Reorder the terms:
-8.5 + 8.5 + -2.5m + m2 = 0 + 8.5

Combine like terms: -8.5 + 8.5 = 0.0
0.0 + -2.5m + m2 = 0 + 8.5
-2.5m + m2 = 0 + 8.5

Combine like terms: 0 + 8.5 = 8.5
-2.5m + m2 = 8.5

The m term is -2.5m.  Take half its coefficient (-1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
-2.5m + 1.5625 + m2 = 8.5 + 1.5625

Reorder the terms:
1.5625 + -2.5m + m2 = 8.5 + 1.5625

Combine like terms: 8.5 + 1.5625 = 10.0625
1.5625 + -2.5m + m2 = 10.0625

Factor a perfect square on the left side:
(m + -1.25)(m + -1.25) = 10.0625

Calculate the square root of the right side: 3.172144385

Break this problem into two subproblems by setting 
(m + -1.25) equal to 3.172144385 and -3.172144385.

Subproblem 1

m + -1.25 = 3.172144385 Simplifying m + -1.25 = 3.172144385 Reorder the terms: -1.25 + m = 3.172144385 Solving -1.25 + m = 3.172144385 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + m = 3.172144385 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + m = 3.172144385 + 1.25 m = 3.172144385 + 1.25 Combine like terms: 3.172144385 + 1.25 = 4.422144385 m = 4.422144385 Simplifying m = 4.422144385

Subproblem 2

m + -1.25 = -3.172144385 Simplifying m + -1.25 = -3.172144385 Reorder the terms: -1.25 + m = -3.172144385 Solving -1.25 + m = -3.172144385 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1.25' to each side of the equation. -1.25 + 1.25 + m = -3.172144385 + 1.25 Combine like terms: -1.25 + 1.25 = 0.00 0.00 + m = -3.172144385 + 1.25 m = -3.172144385 + 1.25 Combine like terms: -3.172144385 + 1.25 = -1.922144385 m = -1.922144385 Simplifying m = -1.922144385

Solution

The solution to the problem is based on the solutions from the subproblems. m = {4.422144385, -1.922144385}

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