norroyeras norroyeras

03-06-2021
Mathematics

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(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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