Hello, 

I have a question related to the transformation of variables in linear regression within Stat iq.

When we try to trasnform the variables to fit the model and improve the R2, and we apply the transformation x4 or x3 x2, I mean an exponential transformation.Qualtrics shows us

I  want to know, why it happens, and how can I include the powers that Qualtrics mentioned.

Thank you in advance.