Expression 1: "x" to the 4th power minus 2 "x" squared Has graph. To audio trace, press ALT+T.x4−2x2
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Expression 2: negative StartRoot, left parenthesis, 1 plus StartRoot, left parenthesis, 1 plus "x" , right parenthesis , EndRoot , right parenthesis , EndRoot Has graph. To audio trace, press ALT+T.−1+1+x