Posted by **Amelie** on Tuesday, September 22, 2009 at 5:39pm.

I had to factor 5x^3-10x^2+43x-6. I got 5x(x^2+-2x)+3(x-2). My teacher said this was half right. What did I do wrong then? Thank you!!

- Algebra -
**Danialle**, Tuesday, September 22, 2009 at 6:01pm
CHECK THIS Ihh.tutor

- Algebra -
**MathMate**, Tuesday, September 22, 2009 at 6:37pm
Your answer expands to

5*x^3-10*x^2+3*x-6

Could you check the question if the coefficient is not 3x instead of 43x.

The expression as in the qustion has no rational factors, so there is probably a typo somewhere.

Yes, your answer is half-way, if not more, to factorizing completely.

- Algebra -
**Amelie**, Tuesday, September 22, 2009 at 9:16pm
Yes, it is supposed to be a three, not a fourty three.

- Algebra -
**MathMate**, Tuesday, September 22, 2009 at 10:10pm
If it is a 3x and not 43x, then you only have to continue your factorization:

5x(x^2+-2x)+3(x-2)

=5x(x^2-2x)+3(x-2)

=5x²(x-2) + 3(x-2)

=(5x²+3)(x-2)

which is the correct answer.

Check:

(5x²+3)(x-2)

=5x³ -10² + 3x -6 OK

## Answer this Question

## Related Questions

- algebra - Solve for s in this equation. Depreciation. D=C-s/n This is my answer ...
- Algebra - I solved (2x-8)/z=y, and got 2yz-8=x as an answer, which my teacher ...
- Algebra - Can someone please help solve this? Solve by using addition or ...
- pre-algebra - 2/x-5=1/x+2 the teacher said i got it wrong when i got -1/7 he got...
- Factoring Polynomials - OH! I get it now! Thanks so much for helping me out ...
- Algebra - In algebra special products and teh questions says to factor the ...
- math - Could someone please check my math questions? any help will be greatly ...
- Math! - Factoring Completely! 13b^2-13 I got (13b-13)(1b-1). On my test my ...
- Math - Factor each expression. Please show me how to do it. Thanx 8x^2-10x+3 15X...
- Algebra II - The directions are factor completely... the problem is 30xy-72y-3x^...

More Related Questions