7a^3-21a^2-70a=0

Simple and best practice solution for 7a^3-21a^2-70a=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 7a^3-21a^2-70a=0 equation:


Simplifying
7a3 + -21a2 + -70a = 0

Reorder the terms:
-70a + -21a2 + 7a3 = 0

Solving
-70a + -21a2 + 7a3 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), '7a'.
7a(-10 + -3a + a2) = 0

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

Ignore the factor 7.

Subproblem 1

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

Subproblem 2

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

Subproblem 3

Set the factor '(5 + -1a)' equal to zero and attempt to solve: Simplifying 5 + -1a = 0 Solving 5 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1a = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1a = 0 + -5 -1a = 0 + -5 Combine like terms: 0 + -5 = -5 -1a = -5 Divide each side by '-1'. a = 5 Simplifying a = 5

Solution

a = {0, -2, 5}

See similar equations:

| p=5+4p | | 7=1+w | | 9-v=15 | | .4(7x-1)=3(2x+1)-4(x+6) | | 12(r-9)=147 | | 0=5x^2-12x+9 | | 8x+3=8(x+6) | | -3(2t-4)+4t=6t-7 | | -4(6x+8)=-104 | | -10=65 | | 7a=-7+6a | | x+(x+2)=124 | | 2w-6(w-4)=-4 | | 12=(.5x)(2x+2) | | x(x+2)=124 | | -69+3=3(29+4) | | 5+3r=5(1-4r) | | X^2-13=3 | | 0.10(y-7)+0.43y=0.03y-0.50 | | 6x+1.2=0.3x-.9+0.8x | | x+10x=20 | | 12(x+3)=52 | | (-5x+2)(7x-13)=0 | | 6(x+3)-3=15 | | 32+-17x=-11x | | 2(0)-5y=17 | | 6y-7=y+8 | | 2(-3)-5y=17 | | -9-9(9+3p)=14-p | | 5=13+3n | | 18=x+3-6x | | 8x-20+5x+5=180 |

Equations solver categories