Review for Test
Complete Class Work from
Chaka Khan Academy Due
5. (2x - 3)(x + 2)(x - 1)
3. (y - y2
) - (2y - 2y2
1. The sum of 2 binomials is 5x2
- 6x. if one of the
binomials is 3x2
- 2x, what is the other binomial?
All Questions are very similar to tomorrow's.
+ 3xy - 4) - (- 5x2
+ 5xy + 2) =
Binomial Sign Summary
(x + 4)(x + 3)
Middle Term Last Term
(x - 4)(x + 3)
(x + 4)(x - 3)
(x - 4)(x - 3) negative positive
Which term is bigger doesn't matter when both signs
are the same, but it does when the signs are different.
*In this case, because the negative coefficient
is larger than the positive.
Special Products are three types of binomials that occur
frequently in algebra. Because of this, you will benefit by
memorizing their patterns. It will help a great deal when
we start factoring (soon). Here they are:
P.S. You'll want to write this down.
You should be able to recognize the products both ways.
+ 16x + 64) = ( )2x + 8 (4p2
+ 16pr + 16r2
) = ( )22p + 4r