把X-1看成一项
f(X-1)=3x^2-2x+1=3(x-1)^2+4(x-1)+2
f(X+1)=3(x+1)^2+4(x+1)+2=3x^2+10x+9
f(X-1)=3x^2-2x+1,则f(X+1)=
f(X-1)=3x^2-2x+1,则f(X+1)=
rt
rt
数学人气:359 ℃时间:2020-03-29 21:00:21
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