-21y^4+9y^3+18y^2+(-21y^3)+9y^2+18y+(-63y^2)+27y+54=

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Solution for -21y^4+9y^3+18y^2+(-21y^3)+9y^2+18y+(-63y^2)+27y+54= equation:


Simplifying
-21y4 + 9y3 + 18y2 + (-21y3) + 9y2 + 18y + (-63y2) + 27y + 54 = 0

Reorder the terms:
54 + 18y + 27y + 18y2 + 9y2 + (-63y2) + 9y3 + (-21y3) + -21y4 = 0

Combine like terms: 18y + 27y = 45y
54 + 45y + 18y2 + 9y2 + (-63y2) + 9y3 + (-21y3) + -21y4 = 0

Combine like terms: 18y2 + 9y2 = 27y2
54 + 45y + 27y2 + (-63y2) + 9y3 + (-21y3) + -21y4 = 0

Combine like terms: 27y2 + (-63y2) = -36y2
54 + 45y + -36y2 + 9y3 + (-21y3) + -21y4 = 0

Combine like terms: 9y3 + (-21y3) = -12y3
54 + 45y + -36y2 + -12y3 + -21y4 = 0

Solving
54 + 45y + -36y2 + -12y3 + -21y4 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '3'.
3(18 + 15y + -12y2 + -4y3 + -7y4) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(18 + 15y + -12y2 + -4y3 + -7y4)' equal to zero and attempt to solve: Simplifying 18 + 15y + -12y2 + -4y3 + -7y4 = 0 Solving 18 + 15y + -12y2 + -4y3 + -7y4 = 0 The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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