factor 3x square - 2x -1?

0 ⤊

factor 3x square - 2x -1?

thanks

2007-02-02 05:08:28 · 5 answers · asked by billa42000 1 in Science & Mathematics ➔ Mathematics

5 answers

3x² - 2x - 1= 0

(3x + 1)(x - 1)

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2007-02-02 05:57:46 · answer #1 · answered by SAMUEL D 7 · 0⤊ 0⤋

3x^2 - 2x-1 1 is a root so thisexpression can be divided by x-1
dividing you find

(3x+1)(x-1)

2007-02-02 05:18:53 · answer #2 · answered by maussy 7 · 0⤊ 0⤋

3(x^2 - 2/3x - 1/3)
= 3(x^2 - 2/3x + (1/3)^2 - (1/3)^2 - 1/3)
= 3[ (x-1/3)^2 - (1/9 + 3/9)]
= 3[(x-1/3)^2 - 4/9]
= 3(x - 1/3 - 2/3)(x - 1/3 + 2/3)
= 3(x - 4/3)(x + 1/3)

2007-02-02 05:19:51 · answer #3 · answered by Anonymous · 0⤊ 0⤋

I'll try.

(3x + 1)*(x -1)

There, how's that?

2007-02-02 05:12:12 · answer #4 · answered by Jerry P 6 · 0⤊ 0⤋

(3x+1)(x-1)

2007-02-02 05:14:03 · answer #5 · answered by Anonymous · 0⤊ 0⤋