SOLUTION: n^2-9-20/2n^2 x n^2+5n/n^2-25
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Question 85478: n^2-9-20/2n^2 x n^2+5n/n^2-25
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression (note: it should be not )
Factor the first numerator (note: if you need help with factoring, check out this solver)
Factor the second numerator
Factor the second denominator
Notice we have these common terms
They divide and cancel out
Now divide and to get
So the expression
simplifies to
As always, we can verify our answer. We can graph the original expression
as a function of x and y like this
graph of
and graph the simplified result
graph of
Since they produce the same graphs, this means they are equivalent. Since they are equivalent, this means that our answer has been verified.
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