Youngjae Youngjae

20-08-2015
Mathematics

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25x^2-16y^2 how to factor?

Respuesta :

20-08-2015

25x^2-16y^2=(5x)^2-(4y)^2=(5x-4y)(5x+4y)
a^2-b^2=(a-b)(a+b)

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