[（5X+2Y)(3X+2Y)+(X-2Y)(X+2Y)]/4X
=[15x²+10xy+6xy+4y²+x²-4y²]/4x
=[16x²+16xy]/4x
=4x+4y
=4(x+y)
=4*(2-3)
=-4
先化简,再求值：[（5X+2Y)(3X+2Y)+(X-2Y)(X+2Y)]/4X,其中X=2,Y=-3
先化简,再求值：[（5X+2Y)(3X+2Y)+(X-2Y)(X+2Y)]/4X,其中X=2,Y=-3
数学人气：445 ℃时间：2019-08-18 03:49:10
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