7y^4-14y^3-21y^2+7y=0

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Solution for 7y^4-14y^3-21y^2+7y=0 equation: 


Simplifying
7y4 + -14y3 + -21y2 + 7y = 0

Reorder the terms:
7y + -21y2 + -14y3 + 7y4 = 0

Solving
7y + -21y2 + -14y3 + 7y4 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '7y'.
7y(1 + -3y + -2y2 + y3) = 0

Ignore the factor 7.

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 '(1 + -3y + -2y2 + y3)' equal to zero and attempt to solve:

Simplifying
1 + -3y + -2y2 + y3 = 0

Solving
1 + -3y + -2y2 + 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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