Question

Classify the following as linear, quadratic and cubic polynomials.

i) 5x² + x – 7

ii) x – x³

iii) x² + x + 4

iv) x – 1

v) 3p

vi) πr² 

Answer 1

i) 5x² + x – 7 : degree 2 hence quadratic polynomial.

ii) x – x³ , : degree 3 hence cubic polynomial. 

iii) x² + x + 4 : degree 2 hence quadratic polynomial. 

iv) x – 1 : degree 1 hence linear polynomial. 

v) 3p : degree 1 hence linear polynomial. 

vi) πr² : degree 2 hence quadratic polynomial.