5m^2-7m-2=

Simple and best practice solution for 5m^2-7m-2= 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^2-7m-2= equation:


Simplifying
5m2 + -7m + -2 = 0

Reorder the terms:
-2 + -7m + 5m2 = 0

Solving
-2 + -7m + 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'.
-0.4 + -1.4m + m2 = 0

Move the constant term to the right:

Add '0.4' to each side of the equation.
-0.4 + -1.4m + 0.4 + m2 = 0 + 0.4

Reorder the terms:
-0.4 + 0.4 + -1.4m + m2 = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + -1.4m + m2 = 0 + 0.4
-1.4m + m2 = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
-1.4m + m2 = 0.4

The m term is -1.4m.  Take half its coefficient (-0.7).
Square it (0.49) and add it to both sides.

Add '0.49' to each side of the equation.
-1.4m + 0.49 + m2 = 0.4 + 0.49

Reorder the terms:
0.49 + -1.4m + m2 = 0.4 + 0.49

Combine like terms: 0.4 + 0.49 = 0.89
0.49 + -1.4m + m2 = 0.89

Factor a perfect square on the left side:
(m + -0.7)(m + -0.7) = 0.89

Calculate the square root of the right side: 0.943398113

Break this problem into two subproblems by setting 
(m + -0.7) equal to 0.943398113 and -0.943398113.

Subproblem 1

m + -0.7 = 0.943398113 Simplifying m + -0.7 = 0.943398113 Reorder the terms: -0.7 + m = 0.943398113 Solving -0.7 + m = 0.943398113 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.7' to each side of the equation. -0.7 + 0.7 + m = 0.943398113 + 0.7 Combine like terms: -0.7 + 0.7 = 0.0 0.0 + m = 0.943398113 + 0.7 m = 0.943398113 + 0.7 Combine like terms: 0.943398113 + 0.7 = 1.643398113 m = 1.643398113 Simplifying m = 1.643398113

Subproblem 2

m + -0.7 = -0.943398113 Simplifying m + -0.7 = -0.943398113 Reorder the terms: -0.7 + m = -0.943398113 Solving -0.7 + m = -0.943398113 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.7' to each side of the equation. -0.7 + 0.7 + m = -0.943398113 + 0.7 Combine like terms: -0.7 + 0.7 = 0.0 0.0 + m = -0.943398113 + 0.7 m = -0.943398113 + 0.7 Combine like terms: -0.943398113 + 0.7 = -0.243398113 m = -0.243398113 Simplifying m = -0.243398113

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.643398113, -0.243398113}

See similar equations:

| -48x-34=60 | | x+90=45 | | 7x^3-28x-35x=0 | | 12^8/35t^6 | | 5x^2+11x+38=0 | | -5(-8)= | | 3.14*5*5*7= | | X^2+7x+3=4 | | A=3.14(5square)(7) | | 6-4x=-22 | | 3x-3(7x+9)=81 | | 6=1a/4+2 | | 10x-6y+20=0 | | x+(x-5)+(x+15)=190 | | 59+n=3n-43 | | 7+x=-8+7 | | y^2+4=68 | | -16-12a-13a=-9 | | 9r-1=53 | | -6x-y=-4 | | 82+y=15 | | x+(-3/2)=-5 | | 8p-p+3=10p-6 | | 3(y-5)=21 | | 4x-3(-3x-26)=208 | | 76=-5x+3(-3x+2) | | 7a-5=4a+7 | | 22m=374 | | (5a-2)(a+4)= | | -06+0.05f=5.3 | | 14=.25w-8 | | 3x=165 |

Equations solver categories