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Question: How to let maple add two arrays only with the coefficents, not the elements?

Question:How to let maple add two arrays only with the coefficents, not the elements?

neil 5 Maple 18
July 25 2014
1

Let x:=2*[x_1,x_2,...,x_n];   y:=3*[x_1,x_2,...,x_n]; If I input x+y, it will turn out  5*[2x_1,2x_2,...,2x_n]; But I want to get  5*[x_1,x_2,...,x_n]. What should I do? Thanks!!
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