Question

Factor completely: 3x2 + 2x - 1. Answer. (3x + 1)(x + 1). (3x + 1)(x - 1). (3x - 1)(x + 1). (3x - 1)(x - 1).

Answer 1

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

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).

Answer 2

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.