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Suppose I have variables d, e and x and I somehow using symbolic calculation get polynomial like this:

9*d^2*e^2*x^2 - 36*d^2*e*x^3 + 18*d*e^2*x^2

I want sage to group coefficients at x and consider my polynomial as polynomial only of x, I want other variables to be no more than just parameters. In short I want to see something like this:

9*d*e^2*(d + 2)*x^2 - 36*d^2*e*x^3

Is it possible to exploit such an approach in Sage?

P.S. I shortened my example. In real life example it is not so easy to see such a grouping by hands.

Suppose I have variables d, e and x and I somehow using symbolic calculation get polynomial like this:

9*d^2*e^2*x^2 
$$9d^2e^2x^2 - 36*d^2*e*x^3 36d^2ex^3 + 18*d*e^2*x^2

I want sage to group coefficients at x and consider my polynomial as polynomial only of x, I want other variables to be no more than just parameters. In short I want to see something like this:

9*d*e^2*(d 
$$9de^2(d + 2)*x^2 2)x^2 - 36*d^2*e*x^3

Is it possible to exploit such an approach in Sage?

P.S. I shortened my example. In real life example it is not so easy to see such a grouping by hands.