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The correct answer for this question is "(3x - 1)(x + 1)."
This is how to factor the given polynomial:
3x2 + 2x - 1
(3x - 1) (x + 1) 

It takes trial and error in order to get the final factor of a given polynomial. It has to be exact and correctly done.

Answer:

Factors are  ( 3x - 1 ) ( x + 1).

       

Step-by-step explanation:

Given :  3x²+ 2x - 1.

To find : Factor.

Solution : We have given that  3x²+ 2x - 1.

By factoring :    3x²+ 3x -1x - 1.

Taking common 3x in first two terms and -1 from last two terms .

   3x( x + 1) -1 (x + 1 ).

On grouping :    ( 3x - 1 ) ( x + 1).

Therefore , Factors are  ( 3x - 1 ) ( x + 1).

       

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