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
MCQs from NCERT Exemplar
Last updated at July 14, 2026 by Teachoo
Transcript
Question 4 A quadratic polynomial, whose zeroes are ā3 and 4, is x2 ā x + 12 (B) x2 + x + 12 (C) š„^2/2 ā š„/2 ā 6 (D) 2x2 + 2x ā 24 The required quadratic polynomial is (x ā (ā3)) (x ā 4) = (x + 3) (x ā 4) = x (x ā 4) + 3 (x ā 4) = x2 ā 4x + 3x ā 12 = x2 ā x ā 12 Dividing by 2 = 1/2 Ć (x2 ā x ā 12) = š„^2/2 ā š„/2 ā 6 So, the correct answer is (C)