This week in precalc 11 we did some factoring review. There were 5 terms we learned:

**C- common:** a good example that helped me understand this was 15 – 5 = 5 ( 3 – 1 )

**D- difference of squares** (*binomials*): an example that helped me understand this was ( – 64 ) = ( x + 8 ) ( x – 8 ) *they are like conjugates.

**P- patterns** (*trinomials*) : this one is a bit harder but after some practice it becomes easier. First you need to identify each number with the formula + bx + c, then you need to write down all factors pairs for c, and then you need to find a factor pair that sums up to b, and finally you substitute factor pairs into two binomials

**E- easy patterns**: an example that helped me understand this one is + 12x + 35 = ( x + 5 ) ( x + 7 )

**U- ugly patterns**: all the ugly polynomials that seem hard or just ugly in general: 5 – 7x + 2. For these, we learned to solve them using the box method.