Противоположные:
2x-3y -(2x-3y)
3y-2x -(3y-2x)
-2x-3y 2x+3y
равные:
2x-3y=-(3y-2x)
3y-2x=-(2x-3y)
ОЗ 3(х-2)(х+2)≠0⇒х≠2 и х≠-2
-3(х+2)-(3х²-12)=3(х+2)-(6-х)
-3х-6-3х²+12-3х-6+6-х=0
-3х²-7х+6=0
D=49+4*18=49+72=121 √D=11
x1=(7-11)/-6=2/3
x2=(7+11)/-6=-3
Х(13-0.26x^2)=0
x=0 или -0,26х^2=-13
x^2=-13/(-0.26)
x^2=50
x=√50
![y=|x-6| -2,\; \; 2\ \textless \ x\ \textless \ 8\\\\|x-6|=y+2\; \; \to \; \; x-6=\pm (y+2)\\\\1)\; \; \left \{ {{x-6=y+2} \atop {2\ \textless \ x<8}} \right. \; \left \{ {{y=x-8} \atop {2\ \textless \ x\ \textless \ 8}} \right.](https://tex.z-dn.net/?f=y%3D%7Cx-6%7C%0A-2%2C%5C%3B+%5C%3B+2%5C+%5Ctextless+%5C+x%5C+%5Ctextless+%5C+8%5C%5C%5C%5C%7Cx-6%7C%3Dy%2B2%5C%3B+%5C%3B+%5Cto+%5C%3B+%5C%3B+x-6%3D%5Cpm+%28y%2B2%29%5C%5C%5C%5C1%29%5C%3B+%5C%3B++%5Cleft+%5C%7B+%7B%7Bx-6%3Dy%2B2%7D+%5Catop+%7B2%5C+%5Ctextless+%5C+x%3C8%7D%7D+%5Cright.+%5C%3B++%5Cleft+%5C%7B+%7B%7By%3Dx-8%7D+%5Catop+%7B2%5C+%5Ctextless+%5C+x%5C+%5Ctextless+%5C+8%7D%7D+%5Cright.+)
Отрезок прямой у=х-8 проходит через точки (2,-6) и (8,0)
![2)\; \left \{ {{x-6=-y-2} \atop {2\ \textless \ x\ \textless \ 8}} \right. \; \left \{ {{y=-x+4} \atop {2\ \textless \ x\ \textless \ 8}} \right.](https://tex.z-dn.net/?f=2%29%5C%3B++%5Cleft+%5C%7B+%7B%7Bx-6%3D-y-2%7D+%5Catop+%7B2%5C+%5Ctextless+%5C+x%5C+%5Ctextless+%5C+8%7D%7D+%5Cright.+%5C%3B++%5Cleft+%5C%7B+%7B%7By%3D-x%2B4%7D+%5Catop+%7B2%5C+%5Ctextless+%5C+x%5C+%5Ctextless+%5C+8%7D%7D+%5Cright.+)
Отрезок прямой у=-х+4 проходит через точки (2,2) и (8,-4).
Нарисуй эти отрезки в декартовых координатах.