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01-05-2018
Mathematics

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Choose the correct factorization for the polynomial 21xy+15x+35ry+25r

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Аноним Аноним

01-05-2018

(21xy +15x )+ (35ry +25r)
3x(7y+5)+ 5r(7y+5)
(3x+5r)(7y+5)

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