Question 780299
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*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 7a^3\ +\ 28a]


The first term has one factor of 7 and 3 factors of a.  The second term has two factors of 2, one factor of 7, and one factor of a.  One factor of 7 and one factor of a are common, so:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 7a\left(a^2\ +\ 4\right)]


is the complete factorization over the real numbers.



*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 7a(a\ +\ 2i)(a\ -\ 2i)]


is the complete factorization over the complex numbers.


John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
<font face="Math1" size="+2">Egw to Beta kai to Sigma</font>
My calculator said it, I believe it, that settles it
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