Question: The function f(x)=x-2x+3is concave down on the interval(s)(-3,).(-,).(-,-3) and (2,).(-,-3).(-3,0).

The function f(x)=x-2x+3is concave down on the interval(s)(-3,).(-,).(-,-3) and (2,).(-,-3).(-3,0).

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