D_Day 5_SpecialFactors
D. I. R. T. Day 5
1.) Multiply.
a)
3xy2 (10x3y1)
b) (3x + 4) ( 2x - 5)
Unit D Day 5 I can factor Quadrilaterals when they have special factors.
2.) Factor.
a) 4x2 - 10x - 36
b) 6x2 + 19x + 10
Two Types
- Perfect Square Trinomial
3. Find the
a)
b)
c)
d)
f)
√
of the following...
a2 + 2ac + c2
This will factor into a squared binomial
- Difference of squares
√x
(a + c)2
a2 - c2
2
This will factor as follows
(a + c) (a - c)
NOTE: There will NEVER be a SUM of Squares!
√x y
4 2
To factor these, we MUST Remember our "C" rules
x2 + 4x + 4
2
x ­ 25 √4
√ 100
√
225x6y4z2
Aug 5­4:05 PM
Aug 5­4:29 PM
Factor the following
Ex 1... a.) x2 + 6x + 9
Factor the following.
Ex 2..... a.) ­9x2 ­ 24x ­ 16
b.) 4x2 + 20x + 25
b.) 3x2 ­ 10x ­ 8 Aug 5­4:43 PM
Aug 5­4:47 PM
1
D_Day 5_SpecialFactors
Factor the following.
Ex 3... a.) 9x2 ­ 16
Factor the following.
Ex 4.... a.) x4 + 3x2 +2x2
Be careful! Think of your Algebra Rules!
b.) 100x2 ­ 25
Factor the perfect square trinomial (What does this mean?)
4x2 + 24x + 36 c.) 225x2 ­ 121
Aug 5­4:49 PM
Aug 5­4:51 PM
Sep 8­1:20 PM
2