Bright Tutorials Bright Tutorials
CBSE Class 9 Mathematics Question 5 of 30

Polynomials — Question 5

Back to all questions
5
Question

Question 5

Classify the following as linear, quadratic and cubic polynomials:

(i) x2 + x

(ii) x - x3

(iii) y + y2 + 4

(iv) 1 + x

(v) 3t

(vi) r2

(vii) 7x3

Answer

(i) x2 + x — Quadratic polynomial [∵ Degree is 2]

(ii) x - x3 — Cubic polynomial [∵ Degree is 3]

(iii) y + y2 + 4 — Quadratic polynomial [∵ Degree is 2]

(iv) 1 + x — Linear polynomial [∵ Degree is 1]

(v) 3t — Linear polynomial [∵ Degree is 1]

(vi) r2 — Quadratic polynomial [∵ Degree is 2]

(vii) 7x3 — Cubic polynomial [∵ Degree is 3]