求解数学题(a²-3)(a+2)-a(a²-a-2)
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求解数学题(a²-3)(a+2)-a(a²-a-2)
求解数学题(a²-3)(a+2)-a(a²-a-2)
求解数学题(a²-3)(a+2)-a(a²-a-2)
化简=a3+2a2-3a-6-a3+a2+2a
=3a2-a-6
注:字母后面的数字表示次方.
答案是3a方-a-6