Question

Q # 8 please help to resolve

Answer 1

30b^2-50 is your answer, so D and you should know this if you have rated yourself as college leveled.

Answer 2

For this case we have the following expression:
 $5b (6b - 10)$
 By doing distributive property we have:
 $6b * 5b - 10 * 5b$
 Rewriting we have that the products are given by:
 $30b ^ 2 - 50b$
 Therefore, the equivalent expression is given by:
 $5b (6b - 10) = 30b ^ 2 - 50b$
 Answer:
 30b ^ 2 - 50b
 option 4