March 8, 2010

That's all we did in class today. Now this is for homework:Today in class, we got our math test back. Then, we corrected some of the questions from the test that everyone had trouble with. Here's one question from the test: simplify by combining like terms:

(2c²+4)+(-c²-2)-(-3c²+4c-4)-(2c²+c+3)

c²+2+(3c²-4c+4)+(-2c²-c-3)

2c²-5c-1

Then we learned :

First

Outside

Inside

Last

It's FOIL which is used for multiplying binomials.

Here's an example:

-7-5 (blue sheet)

-write on your journal

-comment on the blog

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