SOLUTION: I have been working on this math problem and I was wondering if someone could help me? Please and Thank You!! I would deeply appreciate it!! Rational Algebraic Expression Simpl

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Question 169901This question is from textbook Algebra and Trigonometry
: I have been working on this math problem and I was wondering if someone could help me? Please and Thank You!! I would deeply appreciate it!!
Rational Algebraic Expression
Simplify
(1-r^3)(1-r)^-3 This question is from textbook Algebra and Trigonometry

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(1-r^3)(1-r)^-3
= [(1-r)(1+r+r^2)]/[(1-r)^3]
= (1+r+r^2]/[(1-r)^2]
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Cheers,
Stan H.