Answer:

Step-by-step explanation:
Answer:15b^2-5b^3+24b-16
Step-by-step explanation:
(4-b)(5b^2+5b-4)
Open the brackets
20b^2+20b-16-5b^3-5b^2+4b
Collect like terms
20b^2-5b^2-5b^3+20b+4b-16
15b^2-5b^3+24b-16
Answer:
Step-by-step explanation:
1/5 is the simplest form of the fraction
Answer:
i think it is c
Step-by-step explanation:
not 100% sure tho