Kok Yin :) asks how do you do 12xy-13xz+5yz-4xz? - #68kzta - Plurk

Kok Yin :) asks

14 years ago

how do you do 12xy-13xz+5yz-4xz?

'YuHuiFishie-x says

14 years ago

simplify? or evaluate?

AnimeMangaManiac says

14 years ago

=12xy+5yz-17xz

AnimeMangaManiac says

14 years ago

then

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AnimeMangaManiac says

14 years ago

simplify again

Kok Yin :) says

14 years ago

I noe le.

Choi Soo Young says

14 years ago

chey that Q. haha.