Sum of Max, Min

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73 69 67 71

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1 solution

Tom Engelsman
Jan 17, 2021

For the radical equation, equality can only be achieved when x = 4 x=-4 . For the quadratic function, it can be written as f ( x ) = 3 ( x 1 ) 2 4 f(x) = 3(x-1)^2 - 4 which has a global minimum value of 4 -4 . The maximum value is calculated per f ( 4 ) = 3 ( 5 ) 2 4 = 71 f(-4) = 3(-5)^2 - 4 = 71 . Thus, f M A X + f M I N = 71 4 = 67 . f_{MAX} + f_{MIN} = 71 - 4 = \boxed{67}.

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