If y^4-y^3-3 is multiplied by 2y^3-2, what is the coefficient of y^3 in the product? A. -4 B. -2 C. -1 D. 1 E. 6

asked Mar 9, 2022 168k views

1 vote

If y^4-y^3-3 is multiplied by 2y^3-2, what is the coefficient of y^3 in the product?

A. -4
B. -2
C. -1
D. 1
E. 6

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5 votes

Answer:

-4

Explanation:

$(y^4-y^3-3) * (2y^3-2)=...+[(-1)(-2)+(2)(-3)]y^3+...\\=...+[2-6]y^3+...\\=...+(-4)y^3+...\\$

so coefficient of y^3=-4

Bain answered Mar 13, 2022

by Bain

3.0k points

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