(1)计算:(?2)2+(3?5)0?4.(2)化简:求值.3(x2-2xy)-[3x2-2y+2(xy+y)],其中x
(1)计算:(?2)2+(3?5)0?4.(2)化简:求值.3(x2-2xy)-[3x2-2y+2(xy+y)],其中x=-12,y=-3....
(1)计算:(?2)2+(3?5)0?4.(2)化简:求值.3(x2-2xy)-[3x2-2y+2(xy+y)],其中x=-12,y=-3.
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