beemo0817 beemo0817

22-07-2016
Mathematics

contestada

The function f is defined by f(x)=2x^2 -7
Find f(-n)

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princegn princegn

22-07-2016

f(x)=2x^2 - 7
put x = -n
f(-n) = 2(-n)^2 - 7
= 2n^2 - 7

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