Why isn't Expand grouping terms by order?
- To: mathgroup at smc.vnet.net
- Subject: [mg87825] Why isn't Expand grouping terms by order?
- From: <p at dirac.org>
- Date: Fri, 18 Apr 2008 02:38:56 -0400 (EDT)
In:= Expand[ (1+a*x)*(1+b*x), x]
Out= 1 + a x + b x + a b x
How can I coax Mathematica to give me this, instead:
Want= 1 + (a + b) x + a b x
Why isn't Mathematica reporting the answer in terms of powers of x?
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