4a-16a

^{2}-16a^{4}4a-16a^{2}-16a^{4}

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Middletown, CT

Hi Glenn;

4a-16a^{2}-16a^{4}

We must begin with the highest exponential...

-16a^{4}-16a^{2}+4a

-4a(4a^{3}+4a-1)

This is as far as I could get.

Toney, AL

Note: this answer has been removed because it was incorrect.

4a-[16a2-16a4]

should be

4a - [16a^{2} **+** 16a^{4}]

Thanks Jason.

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