计算:(x+y)³(2x+2y)²(3x+3y)²(结果用(x+y)的幂表示)
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计算:(x+y)³(2x+2y)²(3x+3y)²(结果用(x+y)的幂表示)
计算:(x+y)³(2x+2y)²(3x+3y)²(结果用(x+y)的幂表示)
计算:(x+y)³(2x+2y)²(3x+3y)²(结果用(x+y)的幂表示)
(x+y)³(2x+2y)²(3x+3y)²
=(x+y)³[4(x+y)²][9(x+y)²]
=36(x+y)^7