a×12=b×b=a×b=x×y×7=5×x=2×c×c=7x×5=2×a×b=-数学

题目简介

a×12=b×b=a×b=x×y×7=5×x=2×c×c=7x×5=2×a×b=-数学

题目详情

a×12=b×b=a×b=x×y×7=
5×x=2×c×c=7x×5=2×a×b=
题型:解答题难度:中档来源:不详

答案

a×12=12ab×b=b2a×b=abx×y×7=7xy
5×x=5x2×c×c=2c27x×5=35x2×a×b=2ab

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