This week I learned how to FOIL.  You FOIL when you are multiplying a binomial by a binomial.

-The F in FOIL stands for Firsts

-The O in FOIL stands for outsides

-The I in FOIL stands for insides

-The L in FOIL stands for lasts

For example:
(3x-1)(x-1)

First you would multiply the firsts, so (3x)(x)

So it would be

Then you would multiply the outsides, so (3x)(-1)

so it would be -3x

Then you would multiply the insides, so (-1)(x)

So it would equal -x

Then you would multiply the lasts, so (-1)(-1)

So it would equal 1

Your equation would look like -3x-x+1

Now you need to simplify

-4x+1

Then your done!