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avatar+280 

Simplify.
Express your answer as a polynomial in standard form.

 

(3a2−1)(−3a2+5)

 

Thanks in advance!

 Jan 24, 2017
 #1
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0

You need to FOIL to solve this problem. 

(3a2 * -3a2) + (3a2 * 5) + (-1 * -3a2) + (-1 * 5)

 

Then reduce the answer. 

 Jan 24, 2017
 #2
avatar+280 
+3

I already found the answer....

 

on another math forum...

 

the answer is −9a4+18a2−5

Jelly  Jan 24, 2017

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