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Given f (x) = 2^-x, express f (-(x+1)) times f (-3x). PLEASE HELP!!

Given f (x) = 2^-x, express f (-(x+1)) times f (-3x). PLEASE HELP!!
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Given f (x) = 2^-x, express f (-(x+1)) times f (-3x). PLEASE HELP!!

User Tahir
by
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1 Answer

5 votes
subsitute -(x+1) or -x-1 for x


f(-(x+1))=2^(-(-(x+1)))
double negatives cancel

f(-(x-1))=2^(x+1)
User Mikelegg
by
8.6k points
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