a^3-3a^2-40a=0

Simple and best practice solution for a^3-3a^2-40a=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 a^3-3a^2-40a=0 equation:


Simplifying
a3 + -3a2 + -40a = 0

Reorder the terms:
-40a + -3a2 + a3 = 0

Solving
-40a + -3a2 + a3 = 0

Solving for variable 'a'.

Factor out the Greatest Common Factor (GCF), 'a'.
a(-40 + -3a + a2) = 0

Factor a trinomial.
a((-5 + -1a)(8 + -1a)) = 0

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 '(-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

Subproblem 3

Set the factor '(8 + -1a)' equal to zero and attempt to solve: Simplifying 8 + -1a = 0 Solving 8 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + -1a = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -1a = 0 + -8 -1a = 0 + -8 Combine like terms: 0 + -8 = -8 -1a = -8 Divide each side by '-1'. a = 8 Simplifying a = 8

Solution

a = {0, -5, 8}

See similar equations:

| x^2-20x-2=0 | | 25r^2-4=0 | | 17n-3(n+1)=193 | | -2+6y=8 | | s^2+12s+32=0 | | 374.68=170+(.86x) | | 2x^2+3y^2+4x-6y=13 | | 3q^2-5q=2q^2-7q+63 | | y=x^3+4x^2+7x+9 | | 3q^2-5q=2q^2-7q | | 19110=x+x(.05) | | 7x-2.31=32.69 | | k^2+10k+24=0 | | 2c^2-9c=5 | | x+y=35 | | 144-n=-69 | | 5m^2-43m-18=0 | | -x-8+14x=-37 | | -.1d^2+.1d+3=h | | 4v-8=58 | | 1.15(d+0.06d)=45 | | 8x^2=16 | | 6x+6-7x=34 | | -27=-3p+153p | | 167=10(-.8)+x | | 1.15(d+006d)=45 | | 167=10(.8)+x | | 11y^2+62y-24=0 | | 54-(2x+6)=2(x+9)+x | | 6-3x=5x-10+14 | | 3x+12-7x=17-18x+14x-5 | | -6x-8x=84 |

Equations solver categories