设f(x)=3x^5-17x^4+12x^3+6x^2+9x+8,求f(-1/3)
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设f(x)=3x^5-17x^4+12x^3+6x^2+9x+8,求f(-1/3)设f(x)=3x^5-17x^4+12x^3+6x^2+9x+8,求f(-1/3)设f(x)=3x^5-17x^4+1
设f(x)=3x^5-17x^4+12x^3+6x^2+9x+8,求f(-1/3)
设f(x)=3x^5-17x^4+12x^3+6x^2+9x+8,求f(-1/3)
设f(x)=3x^5-17x^4+12x^3+6x^2+9x+8,求f(-1/3)
f(x)=((((3x-17)x+12)x+6)x+9)x+8
f(-1/3)=-(-(-(-(-3/3-17)/3+12)/3+6)/3+9)/3+8
=-(-(-(18/3+12)/3+6)/3+9)/3+8
=-(-(-18/3+6)/3+9)/3+8
=-(0/3+9)/3+8
=-9/3+8
=15/3
=5
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