I’m working with some fairly long expressions, where the structure of each term is reasonably simple, but *every* term has the same three variables, and then a smattering of one or two other variables, and maybe an Int or Rational. It seems like `simplify`

should pull those three variables out; by any metric I can think of, this would lead to a simpler expression. But that’s not what happens. Here’s a MWE:

```
julia> using Symbolics
julia> @variables a b c x y z;
julia> simplify(a*b*c*x + a*b*c*y*z)
a*b*c*x + a*b*c*y*z
```

I would have expected `a*b*c*(x + y*z)`

. Note that the same thing happens if I change — say — `y`

to a literal `2`

, but the expression simplifies nicely if I just remove `y`

. (Though that’s not the expression I actually have.)

This failure to pull out `a*b*c`

gets even more problematic the more terms you have — and I have dozens. Is there anything I can do to get more compact results?