5m^2+16m+15=

Solution for 5m^2+16m+15= equation:

Simplifying
5m2 + 16m + 15 = 0

Reorder the terms:
15 + 16m + 5m2 = 0

Solving
15 + 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'.
3 + 3.2m + m2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + 3.2m + -3 + m2 = 0 + -3

Reorder the terms:
3 + -3 + 3.2m + m2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + 3.2m + m2 = 0 + -3
3.2m + m2 = 0 + -3

Combine like terms: 0 + -3 = -3
3.2m + m2 = -3

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 = -3 + 2.56

Reorder the terms:
2.56 + 3.2m + m2 = -3 + 2.56

Combine like terms: -3 + 2.56 = -0.44
2.56 + 3.2m + m2 = -0.44

Factor a perfect square on the left side:
(m + 1.6)(m + 1.6) = -0.44

Can't calculate square root of the right side.

The solution to this equation could not be determined.