Sec 5.5-Focus - 49 b x 2 22x 121 c x 2 – 2x 1 d x 2 –...

Factoring Trinomials, a = 1 page 5.5 - 13
Section 5.5 Focus Exercises
1. Factor each trinomial. You may do so in one step.
a) x
2
– 12x – 32 b) x
2
– 14x + 40
c) x
2
+ 15x + 36 d) x
2
– 12x + 32
e) x
2
+ 8x + 12 f) x
2
– 9x + 20
g) x
2
+ 11x + 28 h) x
2
– 10x + 21
i) x
2
+ 2x – 48 j) x
2
– 3x – 10
k) x
2
+ 3x – 18 l) x
2
– 4x – 77
m) x
2
– 16x + 64 n) x
2
+ 7x + 49
o) x
2
+ 5x – 50 p) x
2
– x – 42

Factoring Trinomials, a = 1 page 5.5 - 14
2. Factor each trinomial using the ideas developed in this section. If the trinomial is a perfect square
trinomial, then write the factorization as (binomial)
2
. If a trinomial is not factorable, then write
“prime.”
a) x
2
+ 14x