Question 297077
First problem:


(y^2 - 8) * (4y^2 - 4y + 7) equals:


y^2 * (4y^2 - 4y + 7) - 8 * (4y^2 - 4y + 7) which equals:


4y^4 - 4y^3 + 7y^2 - 32y^2 + 32y - 56


Combine like terms to get:


4y^4 - 4y^3 - 25y^2 + 32y - 56


Second problem:


16b^6 - 2p^6


You can factor out a 2 to get:


2 * (8b^6 - p^6)


Third problem:


(x^5 - 6) + (x^5 + 6) equals:


x^5 - 6 + x^5 + 6 after removing parentheses.


Combine like terms to get:


2x^5.