Expression 1: negative 200 "x" squared plus 680 "x" minus 450 left brace, 1.5 less than or equal to "x" less than or equal to 2.5 , right brace−200x2+680x−4501.5≤x≤2.5
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Expression 2: 80 "x" left brace, 0 less than or equal to "x" less than or equal to 1.5 , right brace80x0≤x≤1.5