SOLUTION: Simplify {{{(r^2-81)/(r+9)^2}}}
Algebra.Com
Question 131918: Simplify
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression
Expand to get
Factor to get
Cancel like terms
Simplify
----------------
Answer:
So simplifies to
In other words,
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