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Mathematics 20 Online
OpenStudy (anonymous):

factor a2+4ab+9b2

Directrix (directrix):

If x^2 + 4x + 9 will factor, then so will a^2+4ab+9b^2. Question: What are two integers that multiply to 9 AND sum to 4? @AJneedshelp

OpenStudy (anonymous):

Did you study complex numbers already?

OpenStudy (anonymous):

I think it would be Prime? Recently started learning this myself so I'm not sure

OpenStudy (anonymous):

What is prime? Do you mean prime numbers?

OpenStudy (anonymous):

Prime means that it cannot be factored

OpenStudy (anonymous):

Oh never heard of it before.

OpenStudy (anonymous):

It means the answer is prime.

OpenStudy (anonymous):

Yup the answers Prime, hope we helped :)

Directrix (directrix):

>Question: What are two integers that multiply to 9 AND sum to 4? No such integers exist which is a strong clue that the expression cannot be factored over the set of Integers. So, prime it is in the same sense that the integer 7 is prime.

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