Question

subract polynomios( 7.8x-3.4y+z)(-9.2x+4.8y-2.1z) help me please

Answer 1

Isn't there supposed to be a '-' between those sets of parentheses?

Answer 2

solve please help me

Answer 3

This looks so familiar.

http://openstudy.com/study#/updates/508959b1e4b004fc96ebb06f

Answer 4

is not my family okey

Answer 5

I understand, but what I mean is that I asked a question for clarification so I could help, and instead of answering my question, you said, "solve please."

I don't know what to solve because you are talking about subtraction, but what you wrote looks like multiplication.