Question

5. Classify the following as linear, quadratic and cubic polynomials:
(i) x square + x
(ii) x-r cube
(iii) y + y square+
(iv) 1+x
(v) 3t
(vi) r square
(vii) 7x cube
​

Answer 1

Answer:

Solution: (i) x2 + x

Highest power of x is 2 so it is a quadratic polynomials

(ii) x – x3

Highest power of x is 3 so it is cubic polynomial

(iii) y + y2 + 4

Highest power of y is 2 so it is quadratic polynomial

(iv) 1 + x

Highest power of x is 1 so it is linear polynomial

(v) 3t

Highest power of t is 1 so it is linear polynomial

(vi) r2

Highest power of t is 2 so it is quadratic polynomial

(vii) 7x3

Highest power of x is 3 so it is cubic polynomial