smozz267oxetua
smozz267oxetua
02-02-2018
Mathematics
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choixongdong
choixongdong
02-02-2018
3x^2 - 2x^2y + 2xy^2 + 4y^2 + xy^2 - y^2 + 2x^2y
= 3x^2 + 3y^2 + 3xy^2
answer
3x^2
3y^2
3xy^2
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