7m^3-21m^2-756m=0

Simple and best practice solution for 7m^3-21m^2-756m=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 7m^3-21m^2-756m=0 equation:


Simplifying
7m3 + -21m2 + -756m = 0

Reorder the terms:
-756m + -21m2 + 7m3 = 0

Solving
-756m + -21m2 + 7m3 = 0

Solving for variable 'm'.

Factor out the Greatest Common Factor (GCF), '7m'.
7m(-108 + -3m + m2) = 0

Factor a trinomial.
7m((-9 + -1m)(12 + -1m)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'm' equal to zero and attempt to solve: Simplifying m = 0 Solving m = 0 Move all terms containing m to the left, all other terms to the right. Simplifying m = 0

Subproblem 2

Set the factor '(-9 + -1m)' equal to zero and attempt to solve: Simplifying -9 + -1m = 0 Solving -9 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + -1m = 0 + 9 Combine like terms: -9 + 9 = 0 0 + -1m = 0 + 9 -1m = 0 + 9 Combine like terms: 0 + 9 = 9 -1m = 9 Divide each side by '-1'. m = -9 Simplifying m = -9

Subproblem 3

Set the factor '(12 + -1m)' equal to zero and attempt to solve: Simplifying 12 + -1m = 0 Solving 12 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '-12' to each side of the equation. 12 + -12 + -1m = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -1m = 0 + -12 -1m = 0 + -12 Combine like terms: 0 + -12 = -12 -1m = -12 Divide each side by '-1'. m = 12 Simplifying m = 12

Solution

m = {0, -9, 12}

See similar equations:

| 0.14y+0.08(y+3000)=1560 | | (W)(2w)=o | | 324x^5-108x^4-27x^3+6x^2+x=0 | | 6y-18+8y+6=22 | | 4*5-4+3(5-4)= | | 6x+14=-9x-16 | | 5+m=4x+3 | | 2(4+9w)=26w | | (w+2)(2w-1)=0 | | 2*8+3*-9= | | 3.45*4-8.18= | | 8m-5=(3m+5) | | 3.45(4)-8.18(1)= | | 3+3*6+2=-17 | | 500*98+x*0=(500+x)*30 | | 6n+3-5=-1 | | 6y+814=1186 | | cos(20)=(9/x) | | 32/-7 | | 4(1/4) | | 3x+10y=-15 | | F^2-22f+72=0 | | (5-8w)(5+8w)= | | 12-9y=-5 | | -7x+6-9=29 | | -4+3=-12+17x | | 3z/10-5=8 | | 5(2b-3)=3(b+9) | | 12(12n)+n-3=396 | | 1/8-X/7=3/56 | | F^2-22f=72 | | -4(1-7z)=-29 |

Equations solver categories