Divide 24x^2y + 8xy^2 + 8xy by -4xy

i got -6x - 2y - 2
is that right?

 

I dunno. Is it right?

 

i dunno. i divided the 3 numbers with the -4xy and put the numbers together and that's what i got.
it's one of the available answers, but that doesnt prove anything...

here are the possible answers...

-6x - 2y - 2
-6x - 2y + 2
6x - 2y - 2
6x + 2y + 2

 

(24x^2y) - (2xy) - (2)

Since the 24x is raised to the power of 2y, it's not divisible by -4xy. The first 8xy was squared, to you divide by 2 and leave one of the xy's. Then the last one is the same as the previous, but you don't leave the xy.

 

24x^2y + 8xy^2 + 8xy
-----------------------------
-4xy

-6x - 2y - 2

Yep.

 

My bad, I was treating xy as 1 factor. DD's right.

 

32x^4 - 12x^2 + 7x by 2x.
this would be 16x^3-6x+3.5
right?

 

Right, but never write the 7/2 as 3,5. You should always leave it as 7/2.

 

16x^3 - 6x + 7/2

I left 7/2 as a term since it's exact. But yeah you're right. :]

 

i know. but i didnt wanna cause confusion with my answer just in case it looked like i didn't finish it....
thanks.