This is (3x +2)2 so if x is an integer/3, this expression is the square of an integer so cannot be prime. Anything else, and it's not even an integer.
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6X + 33(2X + 1)==========( all the factoring I see to do here )
It is: 3x2+6x-11 = 0
200x
(6x + 1)(x + 2)
That depends what the value of x is.