Jawabanmu

Jawaban paling cerdas!
2014-08-17T20:21:22+07:00
1. =2xy.x + 2xy.(-1) + xy
=2x²y + (-2xy) + xy
=2x²y - xy
no dua ny nnti , arti titik itu kali ya?!maaf klo keliru
1 5 1
2014-08-17T20:28:23+07:00
=2xy.x + 2xy.(-1) + xy
=2x²y + (-2xy) + xy
=2x²y - xy

1 5 1