t^3-81t=0

Simple and best practice solution for t^3-81t=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 t^3-81t=0 equation:


Simplifying
t3 + -81t = 0

Reorder the terms:
-81t + t3 = 0

Solving
-81t + t3 = 0

Solving for variable 't'.

Factor out the Greatest Common Factor (GCF), 't'.
t(-81 + t2) = 0

Factor a difference between two squares.
t((9 + t)(-9 + t)) = 0

Subproblem 1

Set the factor 't' equal to zero and attempt to solve: Simplifying t = 0 Solving t = 0 Move all terms containing t to the left, all other terms to the right. Simplifying t = 0

Subproblem 2

Set the factor '(9 + t)' equal to zero and attempt to solve: Simplifying 9 + t = 0 Solving 9 + t = 0 Move all terms containing t to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + t = 0 + -9 Combine like terms: 9 + -9 = 0 0 + t = 0 + -9 t = 0 + -9 Combine like terms: 0 + -9 = -9 t = -9 Simplifying t = -9

Subproblem 3

Set the factor '(-9 + t)' equal to zero and attempt to solve: Simplifying -9 + t = 0 Solving -9 + t = 0 Move all terms containing t to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + t = 0 + 9 Combine like terms: -9 + 9 = 0 0 + t = 0 + 9 t = 0 + 9 Combine like terms: 0 + 9 = 9 t = 9 Simplifying t = 9

Solution

t = {0, -9, 9}

See similar equations:

| 7b-116=-4 | | X-78+34=96 | | (2x+6)+(2x+1)=4(x-1)+8 | | M-14=-17+38 | | X^2+10x-150=0 | | 1.1x+11.6=3.2x-1 | | 2.24-1.34x=4x-3.901 | | 3(x+6)=2x+24 | | X+36+3x=100 | | 3+15t-1=8t+20-2t | | X+24=-18 | | -94=m-46 | | 104+a=-45 | | 194+a=-45 | | X+34=-18 | | -55+3y=29 | | 5y-10+y+57=6y+42-3y | | 4x-2=256 | | 2r+14=24 | | 2x+y=2000 | | 2x^4+5x^2=-3 | | 7x+3=5x-11 | | 9=3y-x | | 3x+6x+x=1800 | | 10Q=220-10Q | | 15a^3+40a^2+20a=0 | | 5a(3a^2+8a+4)=0 | | 3(3x-7)=5(2x-3) | | 1+3x-4=3x-3 | | 26a=338 | | 40w=680 | | y^3+21y+7.88=0 |

Equations solver categories