multiply Polynomial with constants

hello

i want to multiply (2x+1)*(c1x+c2x^2)

how should i do?

[KSSV]

You mean multiply?

[marzie jamshidi]

yes

Answer 1

[Walter Roberson]

syms c1 c2 x
(2*x+1)*(c1*x + c2*x^2)

ans = 

collect(expand(ans),x)

ans = 

[marzie jamshidi]

thank you so much