運算式 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
14
運算式 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
15
運算式 16: "y" equals "x" cubed minus 4 ninths "x" squared minus 31 ninths "x" plus 26 ninthsy=x3−49x2−319x+269
16
運算式 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
17
analytical formulae
18
運算式 19: "x" Subscript, "R" , Baseline equals left parenthesis, 13 ninths , right parenthesisxR=139
equals=
13 ninths139
19
Above: Factorization of f(x)
20
運算式 21: left parenthesis, negative 2 thirds , right parenthesis squared minus left parenthesis, negative 2 , right parenthesis minus 1−232−−2−1
equals=
13 ninths139
21
Above: Showing that the formula works for xR
22
運算式 23: left parenthesis, negative 2 thirds , right parenthesis left parenthesis, negative 2 minus 13 ninths , right parenthesis minus 1−23−2−139−1
equals=
StartFraction, 35 Over 27 , EndFraction3527
23
Above: Showing that the formula works for yR
24
隱藏的 "-P" left parenthesis, negative 2 , negative 1 , right parenthesis−2,−1
