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    vikitor's Avatar
    vikitor Posts: 1, Reputation: 1
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    #1

    Sep 19, 2013, 02:15 AM
    how to solve these functions
    a) 2f(3) - 3f(2), when f(x) = x^2 - 5x + 5;
    b) f^2(1) - f^2(0), when f(x) = √(x+1)(x+2)
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Sep 19, 2013, 04:35 AM
    First off, if given the function f(x) = x^2-5x+5 do you know how to calculate the value for f(3)? Just replace the 'x' in the formula with 3 and crank away. Try it, tell us what you get, and we'll help if you get stuck. But you must show us your attempt for further assistance.
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