Fraction unknowns

Divide of fractions with unknowns:

Fraction 1: The quantity x squared plus 6 times x plus 9 over the quantity x minus 1.
Fraction 2: the quantity x squared minus 9 over the quantity x squared minus 2 times x plus 1.

 Find Fraction 1 over Fraction 2.

Correct answer:

d =  0

Step-by-step explanation:

f1=(x2+6)(x+9)x1 f2=(x29)x22x+1  d=f1f2 d=(x2+6)(x+9)x1 x22x+1x29 d=(x2+6)(x+9)x1 x22x+1x29=0

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