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04-01-2017
Mathematics

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If ƒ(n) = 3n 2 - 7, then ƒ(-2) equals _____.

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Apocrophon Apocrophon

04-01-2017

f(n) = 3n² - 7

f(-2) = 3(-2)² - 7
f(-2) = 3(4) - 7
f(-2) = 12 - 7
f(-2) = 5

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