What’s the product of each question ?

Ok I'm totally sure this is off but I seem to be tho only answer here so...

Step-by-step explanation:

7. 8x4y^7 z^2

8. 11x^4 y^3

9. x^9

10. x^7 +2^6

11. x^5 +2x^4 +5x^3

12. x^6 +3x^5 +2x^4 +11x^3 +4x^2

13. 4x^5 y+4x^2 y^3 +12x^3 y^2

14. 6x^4 y+3x5y^2

15. 6x^5 y^2 +18x^4 y^3+18x^2 y^5

16. 11x^6 y^3 +33x^5 y^5 +44x^4 y^4 +88x^3 y^4 +12x^5 y^3