Re: Simplifying polynominals

For starters, , not 9.

Also how did you magically turn into , into and into ?

Re: Simplifying polynominals

Quote:

Originally Posted by

**Prove It** For starters,

, not 9.

Also how did you magically turn

into

,

into

and

into

?

Thanks, cant believe I missed the first part considering how many times I've looked at it.

For the rest I thought that if something was to the power of -1 below the dividing line then it can be moved to the top (numerator section?) and would become a positive to the same power. I was trying to do the same for 3y, moving it above the line as 1/3y^-1?

Re: Simplifying polynominals

So would:

(z + 1)^2 (27x^3y^6)

-----------------------

3y x^-3 (z + 1)^-1

be a correct first step? (sorry I couldn't find any suggestions about the best way to type out a problem). If it is ok I suppose I'm stuck there on how to simplify it further.

Re: Simplifying polynominals

Yes it would be. And to typeset mathematics, we use LaTeX. There is an inbuilt compiler on this site and a subforum dedicated to learning how to use it and gaining assistance with it.

As for negative powers, , so whenever you see negative powers, you can assume there is division. With some manipulation, this would be equivalent to moving everything with a negative power from the top to the bottom with a positive power, or vice versa.

Re: Simplifying polynominals

Ok so:

Original question:

=

So would this also be correct:

=

=

and if it is correct, is it correct as far as simplifying?

Thanks for the help so far.

Re: Simplifying polynominals

The last line is incorrect. When you multiply things with the same base, the powers are ADDED, not multiplied.

Re: Simplifying polynominals

So many silly mistakes, I did it that way the first few dozen times, honest

This is going to take some work to get familiar with... though no more than before I started I suppose.

Re: Simplifying polynominals

Yes that's correct, good job :)

Re: Simplifying polynominals

Quote:

Originally Posted by

**Welkin** So many silly mistakes, I did it that way the first few dozen times, honest

This is going to take some work to get familiar with... though no more than before I started I suppose.

..... I noticed later that I had left the y power negative and it'd bug me if I didn't come back and change it (Happy)