SOLUTION: directions say: perform the indicated operation and simplify 6 over r + 9 over r-7

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Question 163568: directions say: perform the indicated operation and simplify
6 over r + 9 over r-7
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
6 over r + 9 over r-7
6/(r+9)/(r-7)
6/(r+9)*1/(r-7)
6*1/(r+9)(r-7)
6/(r^2+2r-63)