Posted by Math on Tuesday, September 23, 2008 at 6:50pm.
factor 2 out (all coefficents are multiples of 2)
2(4a^2 -4a-15)
Now factor the second part...
2(2a-5)(2a+3)
It might take a while to find the factors
but, I don't understand how you got the answer in the first place; can you place explain?
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