X1:2,3,4,5,6,7X2:5,32,61,54,23,24X3:34,45,56,57,24,89Y:12,23,45,34,23,24二次多项式方程模型是:Y=b0+b1X1+b2X2+b3X3+b4X1X1+b5X2X2+b6X3X3+b7X1X2+b8X2X3+b9X1X3求软件具体步骤操作?多谢!SPSS中如何利用X1,X2两组数据拟合二次多项式Y=a0+a1X1+a2X2+a3x1^2+a4X2^2+a5X1X2