21m^2-7m-70=0

Simple and best practice solution for 21m^2-7m-70=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 21m^2-7m-70=0 equation:


Simplifying
21m2 + -7m + -70 = 0

Reorder the terms:
-70 + -7m + 21m2 = 0

Solving
-70 + -7m + 21m2 = 0

Solving for variable 'm'.

Factor out the Greatest Common Factor (GCF), '7'.
7(-10 + -1m + 3m2) = 0

Factor a trinomial.
7((-5 + -3m)(2 + -1m)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(-5 + -3m)' equal to zero and attempt to solve: Simplifying -5 + -3m = 0 Solving -5 + -3m = 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 + -3m = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -3m = 0 + 5 -3m = 0 + 5 Combine like terms: 0 + 5 = 5 -3m = 5 Divide each side by '-3'. m = -1.666666667 Simplifying m = -1.666666667

Subproblem 2

Set the factor '(2 + -1m)' equal to zero and attempt to solve: Simplifying 2 + -1m = 0 Solving 2 + -1m = 0 Move all terms containing m to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1m = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1m = 0 + -2 -1m = 0 + -2 Combine like terms: 0 + -2 = -2 -1m = -2 Divide each side by '-1'. m = 2 Simplifying m = 2

Solution

m = {-1.666666667, 2}

See similar equations:

| 0=-8x-24 | | 3c^2-27c=0 | | 17-5*x=11+3*x | | 9.300/X240 | | 3x^2-5x+3=o | | 2w-18=-34 | | 7x+4=11x-8 | | 0=-4.9t^2+14.7t | | 4+5y=4+5y | | 7(t-6)+5t=6(2t+5)-13 | | 2(3-5)+6= | | w^2+12w=-32 | | -8n+9=-7n-15 | | x+2x+(2x+1)=126 | | 12(t-6)+3t=5(3t+5)-12 | | W-5/3=5/2 | | 2.45x+2.30y=70.5 | | -2(5s-6)-12=-3(5s+2)-3 | | 2b+42=9+8b | | H=a/7 | | 18=-16t^2+29t+6 | | x=15.75+3.2d | | 7*6/4 | | 40=5/2x | | 3x-10+2x+5=90 | | y+1=-5+7 | | 5.3=-3.4+x/4 | | 3y-10=25+y+15 | | 3x+6=12-12x | | 12x-15=3(3x+3) | | 7x+9=15x-3 | | 2/5x=1/4x+6 |

Equations solver categories