norroyeras
norroyeras
03-06-2021
Mathematics
contestada
(12y²+17y-4)+(9y²-13y+3)
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goyangi
goyangi
03-06-2021
(12y^2 + 17y - 4) + (9y^2 - 13y + 3)
= 12y^2 + 17y - 4 + 9y^2 - 13y + 3
= 21y^2 + 4y - 1
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