Help on easy math problem

[Nukedsodapop 5,000+ posts]

How did you get that? J/w

 

[AdrianD 10+ year member]

**** this stuff, i did it last semester, no more for me.

I did these 3 years ago //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif

US education....lolerskaterz

 

[tappin_azz 10+ year member]

youre right.....my bad

forgot the paranthesis were there.

 

[konechiwa 10+ year member]

no

x^3-Y^3

-----------

x^2-y^2

doesn't the power of two cancel out because the numerator has a bigger power...

I thought that is how it went. So It would be:

x^1-y^1

----------- meaning x-y

1

 

[AdrianD 10+ year member]

NO.

You can't cancel powers if the terms are in a sum/diffrence.

it's :

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

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

(x+y)(x-y)

=

x^2+xy+y^2

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

x+y