y=-(2x+3)/x^2求导怎么算?

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y=-(2x+3)/x^2求导怎么算?y=-(2x+3)/x^2求导怎么算?y=-(2x+3)/x^2求导怎么算?=2/x^2-2*(2x+3)/x^3=-(2x+6)/x^3

y=-(2x+3)/x^2求导怎么算?
y=-(2x+3)/x^2求导怎么算?

y=-(2x+3)/x^2求导怎么算?
=2/x^2-2*(2x+3)/x^3=-(2x+6)/x^3