In a quadratic equation if

*
form a complete square then it is not prime and vice-versa.

You are watching: Factor completely 3x2 + x + 7.

In this question

*
does not make a perfect square.

Therefore, It is a prime.

Option 3 is correct.


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OlgaM077 <116>1 year ago
6 0
It should be prime :DDD
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