Hello,

I am new in this forum and i am french.
I search inverse a polynomial beginning from an exist a polynomial.
I have a polynomial :
A = 1
B = -2
C = 5
D= 50
Y=Ax^3+Bx^2+Cx+D
I want :
P ?
Q ?
R ?
S ?
X=Px^3+Qx^2+Rx+S

I want used formula Excel.

Help me please.

Thank you in advance for your support.

PS : My english is not good, sorry