Question

(4y^3+5y+9)(9-5y-4y^2) find the product​

Answer 1

Answer:

-16y⁵+29y⁴+16y³-61y²+81

Step-by-step explanation:

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Answer 2

Answer:

(4y³+5y+9)(9-5y-4y²):-

{4y³(9-5y-4y²)}+{5y(9-5y-4y²)}+{9(9-5y-4y²)}

{36y³-20y⁴-16y⁵}+{45y-25y²-20y³}+{81-45y-36y²}

36y³-20y⁴‐16y⁵+45y-25y²-20y³+81-45y-36y²

36y³-20y³-25y²-36y²+45y-45y-20y⁴-16y⁵+81

16y³-61y²+0-20y⁴-16y⁵+81

Step-by-step explanation:

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