Expression 3: "y" equals ( 2 "x" minus 1 ) ( "x" plus 2 ) ( 1 minus "x" ) left brace, "y" less than 0 , right brace Has graph. To audio trace, press ALT+T.y=(2x−1)(x+2)(1−x)y<0
3
`-2` left parenthesis, negative 2 , 0 , right parenthesis Has graph. To audio trace, press ALT+T.−2,0
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4
`\frac{1}{2}` left parenthesis, 0.5 , 0 , right parenthesis Has graph. To audio trace, press ALT+T.0.5,0
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5
`1` left parenthesis, 1 , 0 , right parenthesis Has graph. To audio trace, press ALT+T.1,0