expression simplification

Question:expression simplification

Posted: sinat 10 Product: Maple 13

August 08 2012

Hi guys,

I have an expression, say like this:

$2*x*(sum(w[i]*Y[i], i = 1 .. t))+2*a[0]*(sum(w[i]*x[i], i = 1 .. t))-2*a[0]*x*(sum(w[i], i = 1 .. t))$

and i want to simplify the expression like this:

$2*x*(sum(w[i]*Y[i], i = 1 .. t))+a[0]*(2*(sum(w[i]*x[i], i = 1 .. t))-2*x*(sum(w[i], i = 1 .. t)))$

means that i want to factor the $a[0]$ multiplyers. how can i do this??

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