-5m^2-6m+9=0

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Solution for -5m^2-6m+9=0 equation:


Simplifying
-5m2 + -6m + 9 = 0

Reorder the terms:
9 + -6m + -5m2 = 0

Solving
9 + -6m + -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'.
-1.8 + 1.2m + m2 = 0

Move the constant term to the right:

Add '1.8' to each side of the equation.
-1.8 + 1.2m + 1.8 + m2 = 0 + 1.8

Reorder the terms:
-1.8 + 1.8 + 1.2m + m2 = 0 + 1.8

Combine like terms: -1.8 + 1.8 = 0.0
0.0 + 1.2m + m2 = 0 + 1.8
1.2m + m2 = 0 + 1.8

Combine like terms: 0 + 1.8 = 1.8
1.2m + m2 = 1.8

The m term is 1.2m.  Take half its coefficient (0.6).
Square it (0.36) and add it to both sides.

Add '0.36' to each side of the equation.
1.2m + 0.36 + m2 = 1.8 + 0.36

Reorder the terms:
0.36 + 1.2m + m2 = 1.8 + 0.36

Combine like terms: 1.8 + 0.36 = 2.16
0.36 + 1.2m + m2 = 2.16

Factor a perfect square on the left side:
(m + 0.6)(m + 0.6) = 2.16

Calculate the square root of the right side: 1.469693846

Break this problem into two subproblems by setting 
(m + 0.6) equal to 1.469693846 and -1.469693846.

Subproblem 1

m + 0.6 = 1.469693846 Simplifying m + 0.6 = 1.469693846 Reorder the terms: 0.6 + m = 1.469693846 Solving 0.6 + m = 1.469693846 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + m = 1.469693846 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + m = 1.469693846 + -0.6 m = 1.469693846 + -0.6 Combine like terms: 1.469693846 + -0.6 = 0.869693846 m = 0.869693846 Simplifying m = 0.869693846

Subproblem 2

m + 0.6 = -1.469693846 Simplifying m + 0.6 = -1.469693846 Reorder the terms: 0.6 + m = -1.469693846 Solving 0.6 + m = -1.469693846 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.6' to each side of the equation. 0.6 + -0.6 + m = -1.469693846 + -0.6 Combine like terms: 0.6 + -0.6 = 0.0 0.0 + m = -1.469693846 + -0.6 m = -1.469693846 + -0.6 Combine like terms: -1.469693846 + -0.6 = -2.069693846 m = -2.069693846 Simplifying m = -2.069693846

Solution

The solution to the problem is based on the solutions from the subproblems. m = {0.869693846, -2.069693846}

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