Question

(5z-u)(7z+7u)

Answer 1

You must use the method of foil.

Answer 2

So distribute the 5z first.

Answer 3

5z*7z = ?
5z*7u = ?

Answer 4

i did... im trying to figure out if i should let 35zu and -7uz stay the way they are or should i let it combine to get 28zu?

Answer 5

only combine like terms

Answer 6

so let it stay the way it is?

Answer 7

35zu - 7uz are different terms

Answer 8

Don't touch them

Answer 9

thats what i meant by letting them stay the way they are! i appreciate you. thanks for your help!

Answer 10

np