ciaraclair11 ciaraclair11

09-08-2017
Mathematics

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find the factor. 5y^2+4y-1=(5y-10)(___)

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choixongdong choixongdong

09-08-2017

5y^2+4y-1
= 5y^2 + 5y - y - 1
= 5y(y+1) - 1(y+1)
= (y+1)(5y -1) or
= (5y-1)(y +1)

answer
(5y-1)(y +1)

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