Please help. I've been asking about these questions for the past 1 and 30 min. I'm really confused

Simplify Please:

1: (-12xy2z)(3xy)

2: -12xy2z divided by 3xy

3: 2x(2x - 5)

4: -2x(2x-5)

2 answers

You've been spamming the board and are about to be banned. Bob Pursley gave you and answer but you apparently don't understand it.

I don't know how to help you. You'll have to wait until another math tutor sees your posts and helps you. In the meantime, do not post this again.
I apologize. I'm having a rough day today. :( I'm so very sorry Ms. Sue. please forgive me.