The Following Is an Example of a Polynomial OLS Model $$Y _ { i } = \beta _ { 0 } + \beta _ { 1 } ^ { 2 } X _ { 1 i } + \epsilon _ { i }$$

The following is an example of a polynomial OLS model.
$$Y _ { i } = \beta _ { 0 } + \beta _ { 1 } ^ { 2 } X _ { 1 i } + \epsilon _ { i }$$