<span>12z+19-5z+12d+3d= </span>12z-5z+19+12d+3d= 7z+19+15d
2х³-72х-144х-864-х+6х²-216
2х³-217х-1080+6х²
2х³+6х²-217х-1080
y=c имеет с графиком 2 общие точки при c=-7, c=9
3,12-1 5/6=1 43/150
<span>0,01+1/3</span>=103/300
1 43/150-103/300=283/300
Y=(x²+361)/x=x+361/x
y`=1-361/x²=(x²-361)/x2
x²=361
x=-19 U x=19
+ _ +
--------------(-19)------------(19)-----------------
min
ymin=y(19)=38