y=2x²-8
1. x=0 y=-8; y=0 x=-+2
2. x=3 y=2*9-8=10
3. -6=2x²-8 2x²=2 x²=1 x=-+1
4. A(-3;10) y(-3)=2*9-8=10 проходит
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y=2x²-8
1. x=0 y=-8; y=0 x=-+2
2. x=3 y=2*9-8=10
3. -6=2x²-8 2x²=2 x²=1 x=-+1
4. A(-3;10) y(-3)=2*9-8=10 проходит