Need help multiplying rational expression!

Question

anonymous · Answer

I need help solving this:
$$\frac{ 7a  + 28}{ a -4 } \times \frac{ 14a }{ a^{2} + a - 12 } $$
This is what I have simplified it to:
$$ \frac{ 7(a+4) }{ a - 4 } \times  \frac{  (a-3)(a+4)}{ (7a + 7) }$$
I'm not sure if that is right, but I don't think it can be because I'm not sure I could cross anything out and none of my answers look like what I have now.

anonymous · Answer

i don't think it is right

anonymous · Answer

its not right

anonymous · Answer

$14a\neq (a-3)(a+4)$

anonymous · Answer

Actually, I think I might have put my fraction upside down. It's supossed to be (7a + 7) over (a - 3)(a + 4)

anonymous · Answer

can you post the original problem exactly?

anonymous · Answer

i am going to make a guess that it is 
$$\frac{ 7a  + 28}{ a -4 } \div \frac{ 14a }{ a^{2} + a - 12 }$$

anonymous · Answer

Yes, that was it. I switched it around to multiply it.

anonymous · Answer

The 14a was on the bottom though

anonymous · Answer

ok then i am stuck until you post the original problem exactly
then we can do it

anonymous · Answer

division sign and all

anonymous · Answer

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