# How do you FOIL #(4z-u)(3z+2u)#?

##### 3 Answers

The FOIL'ed version of the factored expression is

#### Explanation:

As you may know, FOIL stands for First Outer Inner Last. Using this Mnemonic, we'll work in order.

First:

Outer:

Inner:

Last:

Now, let's put them back together in the expression:

Finally we combine like terms to get our finished expression:

#### Explanation:

The FOIL method:

#(4z−u)(3z+2u)# #(4z*3z) +(4z * 2u) + (-u*3z) + (-u * 2u)# #12z^2 +8zu -3zu - 2u^2# #12z^2 +5zu -2u^2#

Hope this helps!

#### Explanation:

Since

and get

The inside would be

In which

Finally, you solve the last two...

Which equals

You're equation should now look like this;

Subtract

You should get

Your final equation should look like this;