Sign in Start free

CBSE Class 10 Maths (Basic) 2020 · Paper 430(B) · Question 26

Polynomials 2 marks Medium

The students of a class wrote the following eight polynomials (one by each student) on the blackboard :

(i) $x^{3} + 2 x$
(ii) $x^{4} - x^{2} + 3$
(iii) $x + 1$
(iv) $8 (x^{3} - 1)$
(v) $\frac{2}{3} x + 5$
(vi) $x^{4} + x^{3}$
(vii) $x^{2} - 2 x + 1$
(viii) $x^{4} - 1$

aHow many of these are quadratic polynomials ?[1]
bDivide $(x^{4} + x^{3})$ by $(x + 1)$ .[1]

Answer

(a) Exactly

1

quadratic polynomial (namely

x^{2} - 2 x + 1

). (b)

(x^{4} + x^{3}) \div (x + 1) = x^{3}

, with remainder

0

.

🔒 Step-by-step solution

Sign up free to see every step of how it is worked out.

Sign up free Log in

From the board paper

CBSE Class 10 Maths (Basic) 2020 · Paper 430(B), Question 26 — all 40 questions with answers →

More questions from Polynomials

Class 10 Maths — every question with an expert-verified, step-by-step solution.

All 246 questions on Polynomials → Browse all Maths chapters →