5m^2-2m-6=0

Simple and best practice solution for 5m^2-2m-6=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^2-2m-6=0 equation:


Simplifying
5m2 + -2m + -6 = 0

Reorder the terms:
-6 + -2m + 5m2 = 0

Solving
-6 + -2m + 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'.
-1.2 + -0.4m + m2 = 0

Move the constant term to the right:

Add '1.2' to each side of the equation.
-1.2 + -0.4m + 1.2 + m2 = 0 + 1.2

Reorder the terms:
-1.2 + 1.2 + -0.4m + m2 = 0 + 1.2

Combine like terms: -1.2 + 1.2 = 0.0
0.0 + -0.4m + m2 = 0 + 1.2
-0.4m + m2 = 0 + 1.2

Combine like terms: 0 + 1.2 = 1.2
-0.4m + m2 = 1.2

The m term is -0.4m.  Take half its coefficient (-0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
-0.4m + 0.04 + m2 = 1.2 + 0.04

Reorder the terms:
0.04 + -0.4m + m2 = 1.2 + 0.04

Combine like terms: 1.2 + 0.04 = 1.24
0.04 + -0.4m + m2 = 1.24

Factor a perfect square on the left side:
(m + -0.2)(m + -0.2) = 1.24

Calculate the square root of the right side: 1.113552873

Break this problem into two subproblems by setting 
(m + -0.2) equal to 1.113552873 and -1.113552873.

Subproblem 1

m + -0.2 = 1.113552873 Simplifying m + -0.2 = 1.113552873 Reorder the terms: -0.2 + m = 1.113552873 Solving -0.2 + m = 1.113552873 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.2' to each side of the equation. -0.2 + 0.2 + m = 1.113552873 + 0.2 Combine like terms: -0.2 + 0.2 = 0.0 0.0 + m = 1.113552873 + 0.2 m = 1.113552873 + 0.2 Combine like terms: 1.113552873 + 0.2 = 1.313552873 m = 1.313552873 Simplifying m = 1.313552873

Subproblem 2

m + -0.2 = -1.113552873 Simplifying m + -0.2 = -1.113552873 Reorder the terms: -0.2 + m = -1.113552873 Solving -0.2 + m = -1.113552873 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.2' to each side of the equation. -0.2 + 0.2 + m = -1.113552873 + 0.2 Combine like terms: -0.2 + 0.2 = 0.0 0.0 + m = -1.113552873 + 0.2 m = -1.113552873 + 0.2 Combine like terms: -1.113552873 + 0.2 = -0.913552873 m = -0.913552873 Simplifying m = -0.913552873

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.313552873, -0.913552873}

See similar equations:

| -2(-x-3)+4x=-(-x+1) | | 23x-17y=29 | | -6x^2-15=-3x | | 8+3x+3-x=2x+1 | | y=2x^2-7x+9 | | 5+6a=11 | | X-75=2.75 | | (-11y^12)/(33y^8) | | 2.0x-3.0=15 | | 0=9x^3+81x | | 1/2•24 | | 0.14+0.08(y+8000)=1300 | | 7y+2x=49 | | f(x)=(8x+4)(5x+7) | | 25+9h=88 | | x/19-7 | | 3a-6=4(a+1)+13a+7 | | 8!/r!(8-r)!=56 | | -10+7m=6m-3(m-2) | | 4b+6x-2b+5x-8= | | x+x(.06)=25 | | -4f-5=7 | | f(n)=1/2^-1 | | 2y^2=49-x^2 | | 28/49=32/x | | 4=(2.48)t | | 5(9x+9)+2=3(15x)-2 | | -1+5r=9 | | 3(t-2)= | | 11p+21=-78 | | (7e-2)-(3e+6)=8 | | -2(5x-9)=5(-2x-8) |

Equations solver categories