20m^2-9m-20=

Simple and best practice solution for 20m^2-9m-20= 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 20m^2-9m-20= equation:


Simplifying
20m2 + -9m + -20 = 0

Reorder the terms:
-20 + -9m + 20m2 = 0

Solving
-20 + -9m + 20m2 = 0

Solving for variable 'm'.

Factor a trinomial.
(-4 + -5m)(5 + -4m) = 0

Subproblem 1

Set the factor '(-4 + -5m)' equal to zero and attempt to solve: Simplifying -4 + -5m = 0 Solving -4 + -5m = 0 Move all terms containing m to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -5m = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -5m = 0 + 4 -5m = 0 + 4 Combine like terms: 0 + 4 = 4 -5m = 4 Divide each side by '-5'. m = -0.8 Simplifying m = -0.8

Subproblem 2

Set the factor '(5 + -4m)' equal to zero and attempt to solve: Simplifying 5 + -4m = 0 Solving 5 + -4m = 0 Move all terms containing m to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -4m = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4m = 0 + -5 -4m = 0 + -5 Combine like terms: 0 + -5 = -5 -4m = -5 Divide each side by '-4'. m = 1.25 Simplifying m = 1.25

Solution

m = {-0.8, 1.25}

See similar equations:

| s^2-6s=2s+20 | | 6x^2-11x-4=0 | | s^2=8s-16 | | 4a+2b=60 | | 3(m+2)=m-5 | | 10m^2-21m-10= | | 3+2(-1)=2+(-1) | | 4x^2=c+7 | | 3+(-1)2=2+-1 | | 3+x(2)=2+x | | 42m^2-13m-42= | | 3y+-2x+8=24 | | 3y-2x+8=24 | | 3+2x=2+x | | 3y-2x+8=16 | | 45x=x-56 | | x--7=3x+6 | | -7(4b+2)+(29b-7)=0 | | 4x+37=6x+7 | | 10m^3n^2-15m^2n-25m=0 | | 24cz-12cy-6bz+3by= | | 3x^2+9x-54= | | 3x^3-8x^2+7x+2=0 | | 3x^3-8x^2+7x-2=0 | | 4x^2+x-45= | | 3s^2-22s-16= | | 3(x+3)-2(x-1)=5(x-5) | | x=-16x^2+550 | | 24y^2-4y-4= | | 5x(8y-9z)-8y(5d-9z)= | | -9r+7=3-(8*r+8) | | 56v^2+23vd-63d^2= |

Equations solver categories