Please help. I'm stuck and confused about this. Please show work. Thanks!!

Its easy

If you think it’s easy, why didn’t you answer it?

First one

Here's a possibility :

(-7a^6) (12b^10)

Second one

The new side length = 2 * 2x^5 = 4x^5

The new volume = (side)^3 = (4x^5)^3 = 64x^15

So sorry about the late reply! Thank you for your help.

OK.....glad to help....!!!