9.
Simplify using the vertical method. (3k + 5)(2k2 – 5k – 3)

6k3 – 5k2 + 16k – 15

6k3 + 25k2 – 16k – 15

6k3 + 34k2 – 5k – 15

6k3 – 5k2 – 34k – 15

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?