問題詳情
將( x+y) ( a+b)乘開的結果等於下列何者？
(A) x(a+b)+y(a+b)
(B) a(x+y)+b(x+y)
(C) ax+ay+bx+by
(D) 以上皆是
(A) x(a+b)+y(a+b)
(B) a(x+y)+b(x+y)
(C) ax+ay+bx+by
(D) 以上皆是
參考答案
答案：D
難度：非常困難0
書單：沒有書單，新增
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