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    MAT 120 WEEK 5 DISCUSSION

    MAT 120 WEEK 5 DISCUSSION 
    The composition function f(g(x)) = x^4 + 2x^2 + 1.  If g(x) = x^2  then what is f(x)?  Once you find f(x), find the function g(f(x)).  
    
    Can you think of times  in solving problems that this will be a useful rule to know?
    

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  1. function, denoted f-1(x), would have to bring 9 to 3, since it essentially reverses the process exec
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