z^10-4z^9y-21z^8y^2=0

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Solution for z^10-4z^9y-21z^8y^2=0 equation:


Simplifying
z10 + -4z9y + -21z8y2 = 0

Reorder the terms:
-4yz9 + -21y2z8 + z10 = 0

Solving
-4yz9 + -21y2z8 + z10 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), 'z8'.
z8(-4yz + -21y2 + z2) = 0

Factor a trinomial.
z8((-3y + -1z)(7y + -1z)) = 0

Subproblem 1

Set the factor 'z8' equal to zero and attempt to solve: Simplifying z8 = 0 Solving z8 = 0 Move all terms containing y to the left, all other terms to the right. Add '-1z8' to each side of the equation. z8 + -1z8 = 0 + -1z8 Remove the zero: 0 = -1z8 Simplifying 0 = -1z8 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined.

Subproblem 2

Set the factor '(-3y + -1z)' equal to zero and attempt to solve: Simplifying -3y + -1z = 0 Solving -3y + -1z = 0 Move all terms containing y to the left, all other terms to the right. Add 'z' to each side of the equation. -3y + -1z + z = 0 + z Combine like terms: -1z + z = 0 -3y + 0 = 0 + z -3y = 0 + z Remove the zero: -3y = z Divide each side by '-3'. y = -0.3333333333z Simplifying y = -0.3333333333z

Subproblem 3

Set the factor '(7y + -1z)' equal to zero and attempt to solve: Simplifying 7y + -1z = 0 Solving 7y + -1z = 0 Move all terms containing y to the left, all other terms to the right. Add 'z' to each side of the equation. 7y + -1z + z = 0 + z Combine like terms: -1z + z = 0 7y + 0 = 0 + z 7y = 0 + z Remove the zero: 7y = z Divide each side by '7'. y = 0.1428571429z Simplifying y = 0.1428571429z

Solution

y = {-0.3333333333z, 0.1428571429z}

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