Mion
Mion
18-05-2014
Mathematics
contestada
(12y2+17y-4)+9y2-13y+3)
Respuesta :
kate200468
kate200468
18-05-2014
[tex](12y^2+17y-4)+(9y^2-13y+3)=12y^2+9y^2+17y-13y-4+3=\\\\=21y^2+4y-1[/tex]
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