How to simplify a symbolic polynomial with respect to x?

Thanks. What I want is:

syms a b c x
equ = (x-a)*(x-b)+(x-c)

%some code

ans = x^2-(a+b-1)*x+a*b-c

Answer 1

[Stephan]

Hi,

use the

collect

command:

syms a b c x
equ = (x-a)*(x-b)+(x-c)
f = collect(equ)

gives:

f =

    x^2 + (1 - b - a)*x - c + a*b

which is the version you want sorted by powers of x - just a little bit rewritten, but following your wishes.

Best regards

Stephan

[AlterWillZ]

Thanks