y=-3(x)³+x²+11/3怎么求导告诉下3Q

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y=-3(x)³+x²+11/3
y'=-3*3x^2+2x=-9x^2+2x

y'=[-3(x)³+x²+11/3]'
=-9x²+2x

y'=-3*3x^2+2x
=-9x^2+2x

y=-3(x)³+x²+11/3怎么求导 告诉下3Q