jalyssamoss jalyssamoss

23-10-2016
Mathematics

contestada

what is the quotient of
x+4÷x2-16 over x2-1÷x2+3x-28

Respuesta :

nobillionaireNobley nobillionaireNobley

23-10-2016

[tex]\frac{\frac{x+4}{x^2-16}}{\frac{x^2-1}{x^2+3x-28}}\\=\frac{x+4}{(x+4)(x-4)}\times\frac{(x-4)(x+7)}{(x-1)(x+1)}\\=\frac{x+7}{x^2-1}[/tex]

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