Question

fully expand and simplify:

(-8y^3 + 4) (3y^9 + 7y + 4)

Answer 1

[AI-generated answer — Bot GPT 3.5]

To expand and simplify (-8y^3 + 4)(3y^9 + 7y + 4), we need to distribute each term in the first set of parentheses to each term in the second set of parentheses:

-8y^3 * 3y^9 + (-8y^3) * 7y + (-8y^3) * 4 + 4 * 3y^9 + 4 * 7y + 4 * 4

This simplifies to:

-24y^12 - 56y^4 - 32y^3 + 12y^9 + 28y + 16

Therefore, the fully expanded and simplified expression is:

-24y^12 + 12y^9 - 56y^4 - 32y^3 + 28y + 16.