1)=0.7x+x²-0.49-0.7x+5-x²=4.51
2)=4.5x+25-0.81x²-4.5x-10+0.81x²=15
3)=0.2x+x²-0.04-0.2x+16+4x-4x-x²=15.96
4)=0.6x+0.36-x²-0.6x-2x-4+x²+2x=-3.64
Х(3х^2-2х-1)=0
х=0
д=4+4*3*1=4+12=16
х=(2+4)/6=1
х=(2-4)/6=-1/3
5(4x-3)^4*(2-x)^6-6(4x-3)^5*(2-x)^5=(4x-3)^4*(2-x)^5(5(2-x)-6(4x-3))=
=(4x-3)^4*(2-x)^5(10-5x-24x+18)=(4x-3)^4*(2-x)^5(28-29x)
F(x)=3+8x^2-x^4
D(f)=R
F'(x)=16x-4x^3
D(f)=R
F'(x)=0
16x-4x^3=0
4x(4-x^2)
X=0;x^2=4,x=+ и - (2)
Хmax=-2