(1)计算;(?2)3×(?4)2+3(?4)3×(?12)2?327;(2)先化简,再求值:[(x-y)2+(x+y)(x-y)]÷2x,其
(1)计算;(?2)3×(?4)2+3(?4)3×(?12)2?327;(2)先化简,再求值:[(x-y)2+(x+y)(x-y)]÷2x,其中x=2010,y=2009...
(1)计算;(?2)3×(?4)2+3(?4)3×(?12)2?327;(2)先化简,再求值:[(x-y)2+(x+y)(x-y)]÷2x,其中x=2010,y=2009.
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