Simplify fractions of polynomials

  • Thread starter aisha
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  • #1
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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
 

Answers and Replies

  • #2
shmoe
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Notice that 1-x^2 is a difference of squares.
 
  • #3
dextercioby
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shmoe said:
Notice that 1-x^2 is a difference of squares.
Put in the form:
[tex]\frac{(x+1)(x+3)(1-x)}{(x-1)(1-x)(1+x)(x+3)(x+3)} [/tex]
Is it clearer now??
 
  • #4
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dextercioby said:
Put in the form:
[tex]\frac{(x+1)(x+3)(1-x)}{(x-1)(1-x)(1+x)(x+3)(x+3)} [/tex]
Is it clearer now??
THANKS YES ITS CRYSTAL CLEAR :tongue2:
 

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