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Question: substitution problem

Question:substitution problem

djc 571 Maple
December 03 2008
0

Hello,

I have an expression:

y:=a*10^(x/20)+b*10^(x/10);

(x is real here)

I 'd like to write this epxression in the form of y=a*K+b*K^(2) with Maple using 10^(x/20)=K substitution.

I have tried it with subs and algsubs but they don't work here for me.

(Originally I had a more complicated expression of this type).

Thanks for your help in advance.
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