1. F(x)=2x³-5x²-4x
F'(x)=2(x³)'-5(x²)'-4(x)'
F'(x)=2*3x²-5*2x-4*1
F'(x)=6x²-10x-4
2. F(x)=x²+x-6
F'(x)=(x²)'+(x)'-6'
F'(x)=1*2x+1-0
F'(x)=2x+1
