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Sally's friend
Answers (1)
f(g(x))=5(2/x)^2-1 put g in for x =5(4/x)-1 Exponents =(20/x)-1 This is it or get = (20/x)-(x/x) LCD = (20-x)/x Solution: (20/x)-1 OR (20-x)/x g(f(x))=2/(5x^2-1) put f in for g This is simplified
