f(X-1)=3x^2-2x+1,则f(X+1)=rt

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f(X-1)=3x^2-2x+1,则f(X+1)=rtf(X-1)=3x^2-2x+1,则f(X+1)=rtf(X-1)=3x^2-2x+1,则f(X+1)=rt把X-1看成一项f(X-1)=3x^2

f(X-1)=3x^2-2x+1,则f(X+1)=rt
f(X-1)=3x^2-2x+1,则f(X+1)=
rt

f(X-1)=3x^2-2x+1,则f(X+1)=rt
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
=3x^2-6x+3+4x+1
=3(x-1)^2+4x-4+4+1
=3(x-1)^2+4(x-1)+5
f(x)=3x^2+4x+5
f(x+1)=3(x+1)^2+4(x+1)+5
=3x^2+6x+3+4x+4+5
=3x^2+10x+12

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