The polynomial px2 + qx + rx4 + 5 is of type / » Mathematical Tools for Economics 1 solved MCQs / By admin Question: The polynomial px2 + qx + rx4 + 5 is of type A. linear B. quadratic C. cubic D. biquadratic Answer» d. biquadratic Note: The above multiple-choice question is for all general and Competitive Exams in India.