3y^4-18y^3-21y=

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Solution for 3y^4-18y^3-21y= equation: 


Simplifying
3y4 + -18y3 + -21y = 0

Reorder the terms:
-21y + -18y3 + 3y4 = 0

Solving
-21y + -18y3 + 3y4 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '3y'.
3y(-7 + -6y2 + y3) = 0

Ignore the factor 3.

Subproblem 1
Set the factor 'y' equal to zero and attempt to solve:

Simplifying
y = 0

Solving
y = 0

Move all terms containing y to the left, all other terms to the right.

Simplifying
y = 0

Subproblem 2
Set the factor '(-7 + -6y2 + y3)' equal to zero and attempt to solve:

Simplifying
-7 + -6y2 + y3 = 0

Solving
-7 + -6y2 + y3 = 0

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
y = {0}

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