表达式4: 5 "x" to the 4th power minus 15 "x" squared plus 5 tilde 0 left brace, negative 2 less than "x" Subscript, 0 , Baseline less than negative 1 , right brace5x40−15x20+5~0−2<x0<−1
4
表达式5: 5 "x" to the 4th power minus 15 "x" squared plus 5 tilde 0 left brace, negative 1 less than "x" Subscript, 1 , Baseline less than 0 , right brace5x41−15x21+5~0−1<x1<0
5
表达式6: 5 "x" to the 4th power minus 15 "x" squared plus 5 tilde 0 left brace, 0 less than "x" Subscript, 2 , Baseline less than 1 , right brace5x42−15x22+5~00<x2<1
6
表达式7: 5 "x" to the 4th power minus 15 "x" squared plus 5 tilde 0 left brace, 1 less than "x" Subscript, 3 , Baseline less than 2 , right brace5x43−15x23+5~01<x3<2
7
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left parenthesis, StartFraction, negative 1 minus StartRoot, 5 , EndRoot Over 2 , EndFraction , 2 , right parenthesis−1−52,2
left parenthesis, StartFraction, 1 minus StartRoot, 5 , EndRoot Over 2 , EndFraction , negative 2 , right parenthesis1−52,−2
left parenthesis, StartFraction, negative 1 plus StartRoot, 5 , EndRoot Over 2 , EndFraction , 2 , right parenthesis−1+52,2
left parenthesis, StartFraction, 1 plus StartRoot, 5 , EndRoot Over 2 , EndFraction , negative 2 , right parenthesis1+52,−2
"f" left parenthesis, "x" , right parenthesis equals "x" to the 5th power minus 5 "x" cubed plus 5 "x"fx=x5−5x3+5x
