1a)f`(x)=12-3x²3(2-x)(2+x)=0x=2 x=-2 _ + _----------(-2)------------------(2)------------- min maxb)f`(x)=16x-4x³4x(2-x)(2+x)=0x=0 x=2 x=-2 + _ + _-----------(-2)--------------(0)-------------(2)----------- max min max2a)f`(x)=3x²+6x-93(x²+2x-3)=0x1+x2=-2 U x1*x2=-3x1=-3 U x2=1 + _ +-------------(-3)------------------(1)----------возр убыв возрб)f`(x)=12x²-60x³12x²(1-5x)=0x=0 x=0,2 + + _-----------(0)----------------(0,2)------------возр возр убыв