7y^4+28y^3+28y^2=

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Solution for 7y^4+28y^3+28y^2= equation:


Simplifying
7y4 + 28y3 + 28y2 = 0

Reorder the terms:
28y2 + 28y3 + 7y4 = 0

Solving
28y2 + 28y3 + 7y4 = 0

Solving for variable 'y'.

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

Factor a trinomial.
7y2((2 + y)(2 + y)) = 0

Ignore the factor 7.

Subproblem 1

Set the factor 'y2' equal to zero and attempt to solve: Simplifying y2 = 0 Solving y2 = 0 Move all terms containing y to the left, all other terms to the right. Simplifying y2 = 0 Take the square root of each side: y = {0}

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 = {0, -2, -2}

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