Click the Response Y red triangle and select Estimates > Show Prediction Expression.
Prediction Expression
Response Surface Report
The first table gives the second-order model coefficients in matrix form. The coefficient of X1*X1 is 4.4365909, the coefficient of X2*X2 is 5.0765909, and the coefficient of X1*X2 is 0. The coefficients of the linear effects, 2.349 for X1 and 5.003 for X2, are given in the column labeled Y.

Help created on 9/19/2017