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Simplify the following:

(2y + 1)(4y^10 + 2y^9 + 4y^8 + 2y^7 + 2y^6 + 4y^5)

Express your answer as a polynomial with the degrees of the terms in decreasing order.

 Feb 18, 2021
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(2y + 1)(4y10 + 2y9 + 4y8 + 2y7 + 2y6 + 4y5)

= 8y11 + 4y10 + 4y10 + 8y9 + 2y9 + 4y8 + 4y8 + 4y7 + 2y7 + 8y6 + 2y6 + 4y5

= 8y11 + 8y10 + 10y9 + 8y8 + 6y7 + 10y6 + 4y5

 Feb 18, 2021

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