นิพจน์ 14: left parenthesis, negative 2 thirds "x" minus 1 third , right parenthesis squared equals "x" cubed minus 3 "x" plus 3−23x−132=x3−3x+3
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นิพจน์ 15: 0 equals left parenthesis, negative 2 thirds "x" minus 1 third , right parenthesis squared minus "x" cubed plus 3 "x" minus 30=−23x−132−x3+3x−3
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นิพจน์ 16: "y" equals "x" cubed minus 4 ninths "x" squared minus 31 ninths "x" plus 26 ninthsy=x3−49x2−319x+269
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นิพจน์ 17: "y" equals left parenthesis, "x" plus 2 , right parenthesis left parenthesis, "x" minus 1 , right parenthesis left parenthesis, "x" minus 13 ninths , right parenthesisy=x+2x−1x−139
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analytical formulae
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นิพจน์ 19: "x" Subscript, "R" , Baseline equals left parenthesis, 13 ninths , right parenthesisxR=139
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Above: Factorization of f(x)
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นิพจน์ 21: left parenthesis, negative 2 thirds , right parenthesis squared minus left parenthesis, negative 2 , right parenthesis minus 1−232−−2−1
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Above: Showing that the formula works for xR
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นิพจน์ 23: left parenthesis, negative 2 thirds , right parenthesis left parenthesis, negative 2 minus 13 ninths , right parenthesis minus 1−23−2−139−1
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Above: Showing that the formula works for yR
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นิพจน์ 25: left parenthesis, negative 2 , negative 1 , right parenthesis−2,−1