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计算:1.(X+Y)(X-Y)的平方-(6X的平方Y-2XY的平方)÷(2Y)2.(2+2B-1)(A-2B-1)
2025-12-14 21:58:22
推荐回答(1个)
回答1:

(x+y)(x-y)^2-(6yx^2-2xy^2)/(2y)=(x+y)(x-y)^2-(3x^2-xy)