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# divding polynomials watch

1. can someone tell me how i should do this:

Q) divide (x^4 + x^2 - 2) by (x-1)

thnks.
2. If you know how to do normal polynomial long division, follow the same way, and just introduce a 0(x^3) into the x^4 expession, and just follow through like normal, and you'll get your quotient on the top, and if present, your remainder
3. The general technique will be in your textbook, but I would advise you write this particular expression as:

4. It doesn't look to me like long division is necessary - the expression is a quadratic in x^2, so it can be factorised to (x^2 - 1)(x^2 + 2) = (x - 1)(x + 1)(x^2 + 2). From here, your division should be simple.
5. my textbook only shows examples in which there are'nt any remainders =( i think i have a remainder of 2 at the end and dont know what to do with it, can you show me step by step?

and how did u put the powers on?!
6. i posted a video solution to that question on my blog found in the signature. Just look for long division with polynomials. Hope that helps

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Updated: March 28, 2011
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