计算 [12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²

问题描述:

计算 [12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²

Sjs=(Pjs2+Qjs2)1/2=(65.222+79.672)1/2

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[12(x+y)³(y-x)]³÷[4(x+y)²(x-y)]²=【12×12×12÷(4×4)(x+y)^9 (y-x)^3】 ÷【(x+y)^4 (x-y)^2】=【12×12×12÷(4×4)(x+y)^9 (y-x)^3】 ÷【(x+y)^4 (y-x)^2】=108(x+y)^5 (y-x)