求这个数的导数是什么

f(x)=?·3ax2+2bx+c=ax2+2bx f(x)=xlnx+x(lnx)+ln2·2?=lnx+1+ln2·2? f(x)=[(x-1)(x+1)-(x-1)(x+1)](x+1)2=2(x+1)2 (uv)=[uv-uv]v2 f(x)=(x2)·e?+x2·(e?)=2xe?+x2·e? (uv)=uv+uv