n^3-9n^2=-20n

Simple and best practice solution for n^3-9n^2=-20n 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 n^3-9n^2=-20n equation:


Simplifying
n3 + -9n2 = -20n

Reorder the terms:
-9n2 + n3 = -20n

Solving
-9n2 + n3 = -20n

Solving for variable 'n'.

Reorder the terms:
20n + -9n2 + n3 = -20n + 20n

Combine like terms: -20n + 20n = 0
20n + -9n2 + n3 = 0

Factor out the Greatest Common Factor (GCF), 'n'.
n(20 + -9n + n2) = 0

Factor a trinomial.
n((4 + -1n)(5 + -1n)) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(4 + -1n)' equal to zero and attempt to solve: Simplifying 4 + -1n = 0 Solving 4 + -1n = 0 Move all terms containing n to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1n = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1n = 0 + -4 -1n = 0 + -4 Combine like terms: 0 + -4 = -4 -1n = -4 Divide each side by '-1'. n = 4 Simplifying n = 4

Subproblem 3

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

Solution

n = {0, 4, 5}

See similar equations:

| 49w^2-121=0 | | 9.78(27x-65)=78.24(6x+34) | | 70x^4=2*5*x^4 | | 9a-15b/12 | | 4e^4x-2=0 | | 6=2x+28 | | X/2+1=-10 | | X+2*2x+3=91 | | T=U*C^2 | | 260=.03x^2+.2x | | 3(x-4)-x+3=16 | | f(x)=x+4 | | 8p+2p-1=-11 | | p^2+5-84=0 | | 5x-8f(x)-20=0 | | 46/8=6.75 | | 9c-8-8c=23 | | -5a+3b=12 | | n^3-20n=16n | | 1+2/3j=15 | | X+(x-5)=180 | | -2.4x=48 | | X+(x+5)=180 | | 18-w/20=-9 | | 0.4x+1.4=0.6x-0.4 | | 1/4(12-8y)=3-3y | | 10x^2-10y^2=0 | | 8(x-4)+7=2x+6(-4+x) | | A=r | | Y=2-4/-1-10 | | 3/5x=30 | | 3x-4=12x+3 |

Equations solver categories