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aisha
Dec8-04, 03:55 PM
Simplify (x+1)/(x-1) multiplied by (x+3)/(1-x^2) divided by (x+3)^2/(1-x)

Im not sure how to factor the 1-x^2 and what to do with 1-x

I dont know how to simplify this plz help someone.

The answer to this question is 1/(x-1)(x+3)
x cannot = 1,-1, and -3

shmoe
Dec8-04, 04:10 PM
Notice that 1-x^2 is a difference of squares.

dextercioby
Dec8-04, 04:20 PM
Notice that 1-x^2 is a difference of squares.

Put in the form:
\frac{(x+1)(x+3)(1-x)}{(x-1)(1-x)(1+x)(x+3)(x+3)}
Is it clearer now??

aisha
Dec8-04, 04:25 PM
Put in the form:
\frac{(x+1)(x+3)(1-x)}{(x-1)(1-x)(1+x)(x+3)(x+3)}
Is it clearer now??

THANKS YES ITS CRYSTAL CLEAR :tongue2: