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Mathematics 17 Online
OpenStudy (peterg2001):

need help really FAST @hasalotoftrouble @geometry123 @Marmar10 @GodlyMaths @josd32 If f(n) = n ^2 - n, then f(-4) is _____. -20 20 12 -12

OpenStudy (anonymous):

20

OpenStudy (anonymous):

20

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