5m^2+5m-9=0

Simple and best practice solution for 5m^2+5m-9=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

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


Simplifying
5m2 + 5m + -9 = 0

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

Solving
-9 + 5m + 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 + m + m2 = 0

Move the constant term to the right:

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

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

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

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

The m term is m.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + m2 = 1.8 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + m2 = 1.8 + 0.25

Combine like terms: 1.8 + 0.25 = 2.05
1.25 + m2 = 2.05

Factor a perfect square on the left side:
(m + 0.5)(m + 0.5) = 2.05

Calculate the square root of the right side: 1.431782106

Break this problem into two subproblems by setting 
(m + 0.5) equal to 1.431782106 and -1.431782106.

Subproblem 1

m + 0.5 = 1.431782106 Simplifying m + 0.5 = 1.431782106 Reorder the terms: 0.5 + m = 1.431782106 Solving 0.5 + m = 1.431782106 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + m = 1.431782106 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + m = 1.431782106 + -0.5 m = 1.431782106 + -0.5 Combine like terms: 1.431782106 + -0.5 = 0.931782106 m = 0.931782106 Simplifying m = 0.931782106

Subproblem 2

m + 0.5 = -1.431782106 Simplifying m + 0.5 = -1.431782106 Reorder the terms: 0.5 + m = -1.431782106 Solving 0.5 + m = -1.431782106 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + m = -1.431782106 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + m = -1.431782106 + -0.5 m = -1.431782106 + -0.5 Combine like terms: -1.431782106 + -0.5 = -1.931782106 m = -1.931782106 Simplifying m = -1.931782106

Solution

The solution to the problem is based on the solutions from the subproblems. m = {0.931782106, -1.931782106}

See similar equations:

| 3t-12=30+2t | | (s-t)(3s+8t)=0 | | 3.6667xX=0.1667 | | 7x^5y^5-16xy^9+6x^6y^4= | | 7x^5-16xy^9+6x^6y^4= | | 0.20y-1.5=0.10y+3-0.8y | | 3ln(3x-5)=12 | | 1=100/p | | 5p^2+5p-5=0 | | 16x-8=14x-2 | | -2z+5-5z=8-6z | | 2-(2)= | | 3t^2+8t+4=0 | | (6u)+18+-1(9u)=-12 | | 5(-x+3)+2x=-2x+7 | | (x/3)+((3x-4)/2x) | | 3q^2-4q+1=0 | | 20x+2/x+2 | | 2y= 54-6x | | ((3x-4)/2x) | | (5x-6)(5x+6)= | | 20x+2/(x+2) | | 2f^2-3=0 | | 12q-4-9q=6+4q | | 0.8*x=0.25*x+6 | | 2(x+5)=(x-4) | | -4v-(7-v)=4-2v | | 6+n^4=60 | | 5v+23=2(v+4) | | y=-.22x+5 | | 12/32 | | 4x-18=0 |

Equations solver categories