График приложен................
(-1/3-6)(-1/3+8)-(-1/3+4)(10-1/3)=(-19/3)(23/3)-(11/3)(29/3)=(-19/3*23/3)-(11/3*29/3)=(- 437/9)-(319/9)=-756/9=-84
4(2-у)=10
8-4у=10
4у=8-10
4у=-2
у=-0.5
<span>3х</span>³<span>- 27x=0
х(3х</span>²<span>-27)=0
х=0 или 3х</span>²<span>-27=0
3х</span>²<span>= 27
x</span>²=9
<span> x= +-3
Ответ: -3;0:3.</span>