7y^7+28y^6+28y^5=0

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Solution for 7y^7+28y^6+28y^5=0 equation:


Simplifying
7y7 + 28y6 + 28y5 = 0

Reorder the terms:
28y5 + 28y6 + 7y7 = 0

Solving
28y5 + 28y6 + 7y7 = 0

Solving for variable 'y'.

Factor out the Greatest Common Factor (GCF), '7y5'.
7y5(4 + 4y + y2) = 0

Factor a trinomial.
7y5((2 + y)(2 + y)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'y5' equal to zero and attempt to solve: Simplifying y5 = 0 Solving y5 = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y5 = 0 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 '(2 + y)' equal to zero and attempt to solve: Simplifying 2 + y = 0 Solving 2 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + y = 0 + -2 Combine like terms: 2 + -2 = 0 0 + y = 0 + -2 y = 0 + -2 Combine like terms: 0 + -2 = -2 y = -2 Simplifying y = -2

Subproblem 3

Set the factor '(2 + y)' equal to zero and attempt to solve: Simplifying 2 + y = 0 Solving 2 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + y = 0 + -2 Combine like terms: 2 + -2 = 0 0 + y = 0 + -2 y = 0 + -2 Combine like terms: 0 + -2 = -2 y = -2 Simplifying y = -2

Solution

y = {-2, -2}

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