Question 4 - MCQs from NCERT Exemplar - Chapter 2 Class 10 Polynomials

Last updated at Dec. 16, 2024 by

A quadratic polynomial, whose zeroes are –3 and 4, is

(A)x 2 – x + 12   (B) x 2 + x + 12

(C) x 2 /2 − x/2 − 6  (D) 2x 2 + 2x − 24

NCERT Exemplar - A quadratic polynomial, whose zeroes are –3 and 4, is - MCQs from NCERT Exemplar

part 2 - Question 4 - MCQs from NCERT Exemplar - Serial order wise - Chapter 2 Class 10 Polynomials

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Question 4 A quadratic polynomial, whose zeroes are –3 and 4, is x2 – x + 12 (B) x2 + x + 12 (C) 𝑥^2/2 − 𝑥/2 − 6 (D) 2x2 + 2x − 24 The required quadratic polynomial is (x − (−3)) (x − 4) = (x + 3) (x − 4) = x (x − 4) + 3 (x − 4) = x2 − 4x + 3x − 12 = x2 − x − 12 Dividing by 2 = 1/2 × (x2 − x − 12) = 𝑥^2/2 − 𝑥/2 − 6 So, the correct answer is (C)

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo