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02-12-2016
Mathematics

contestada

simplify

4/a-a/4

A. 16-a^2/4a
B. 4-a/4a
C. 4-a/a
D. -1

Respuesta :

02-12-2016

4/a - a/4
= (16 - a²)/(a-4)
= (4-a)(4+a) / (a-4)
= - (4+a)
= a-4

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