taylormill137ow6qqw taylormill137ow6qqw

12-09-2017
Mathematics

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factorise completely 4y^2-z^2

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Аноним Аноним

17-09-2017

s the difference of 2 squares:-

a^2 - b^2 = (a + b)(a - b)

so her it is (2y + z)(2y - z)

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