Hi again David;
x^{2}9x+8
We can factor this.
For the FOIL...
FIRST must be (x)(x)=x^{2}
OUTER and INNER must addup to 9x
LAST must be (8)(1) or (1)(8) or (4)(2) or (2)(4), and both numbers must be negative.
(x8)(x1)
FIRST...(x)(x)=x^{2}
OUTER...(x)(1)=1x=x
INNER...(8)(x)=8x
LAST...(8)(1)=8
x^{2}x8x+8
x^{2}9x+8
11/25/2013

Vivian L.