5m^2+16m+5=

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Solution for 5m^2+16m+5= equation:


Simplifying
5m2 + 16m + 5 = 0

Reorder the terms:
5 + 16m + 5m2 = 0

Solving
5 + 16m + 5m2 = 0

Solving for variable 'm'.

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

Divide each side by '5'.
1 + 3.2m + m2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + 3.2m + -1 + m2 = 0 + -1

Reorder the terms:
1 + -1 + 3.2m + m2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 3.2m + m2 = 0 + -1
3.2m + m2 = 0 + -1

Combine like terms: 0 + -1 = -1
3.2m + m2 = -1

The m term is 3.2m.  Take half its coefficient (1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
3.2m + 2.56 + m2 = -1 + 2.56

Reorder the terms:
2.56 + 3.2m + m2 = -1 + 2.56

Combine like terms: -1 + 2.56 = 1.56
2.56 + 3.2m + m2 = 1.56

Factor a perfect square on the left side:
(m + 1.6)(m + 1.6) = 1.56

Calculate the square root of the right side: 1.2489996

Break this problem into two subproblems by setting 
(m + 1.6) equal to 1.2489996 and -1.2489996.

Subproblem 1

m + 1.6 = 1.2489996 Simplifying m + 1.6 = 1.2489996 Reorder the terms: 1.6 + m = 1.2489996 Solving 1.6 + m = 1.2489996 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.6' to each side of the equation. 1.6 + -1.6 + m = 1.2489996 + -1.6 Combine like terms: 1.6 + -1.6 = 0.0 0.0 + m = 1.2489996 + -1.6 m = 1.2489996 + -1.6 Combine like terms: 1.2489996 + -1.6 = -0.3510004 m = -0.3510004 Simplifying m = -0.3510004

Subproblem 2

m + 1.6 = -1.2489996 Simplifying m + 1.6 = -1.2489996 Reorder the terms: 1.6 + m = -1.2489996 Solving 1.6 + m = -1.2489996 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.6' to each side of the equation. 1.6 + -1.6 + m = -1.2489996 + -1.6 Combine like terms: 1.6 + -1.6 = 0.0 0.0 + m = -1.2489996 + -1.6 m = -1.2489996 + -1.6 Combine like terms: -1.2489996 + -1.6 = -2.8489996 m = -2.8489996 Simplifying m = -2.8489996

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-0.3510004, -2.8489996}

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