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p²(x-y)²-q²(y-x)四次方
【50/(1/11)】²-【49/(10/11)】²
人气:149 ℃ 时间:2020-05-23 10:37:46
解答
p²(x-y)²-q²(y-x)四次方
=(x-y)²【p²-q²(x-y)²】
=(x-y)²(p+qx-qy)(p-qx+qy)
【50又1/11】²-【49又10/11)】²
=(50又1/11+49又10/11)x(50又1/11-49又10/11)
=100x2/11
=200/11
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