Ex 2.2,1 - Chapter 2 Class 9 Polynomials
Last updated at Dec. 13, 2024 by Teachoo
Last updated at Dec. 13, 2024 by Teachoo
Ex 2.2, 1 Find the value of the polynomial 5x -4x2 + 3 at (i) x = 0 Let p(x) = 5x – 4x2 + 3 Putting x=0 p(0) = 5 × (0) – 4 × (0)2 + 3 = 0 – 0 + 3 = 3 Ex 2.2, 1 Find the value of the polynomial 5x -4x2 + 3 at (ii) x = −1 Let p(x) = 5x – 4x2 + 3 Putting x = –1 p(-1) = 5 × (-1) – 4 × (-1)2 + 3 = -5 – 4 × (1) + 3 = -5 – 4 + 3 = -6 Ex 2.2, 1 Find the value of the polynomial 5x -4x2 + 3 at (iii) x = 2 Let p(x) = 5x – 4x2 + 3 Putting x = 2 p(2) = 5 × (2) – 4 × (2)2 + 3 = 10 – 4 × (4) + 3 = 10 – 16 + 3 = -3
Ex 2.2
Ex 2.2, 2 (i)
Ex 2.2, 2 (ii)
Ex 2.2, 2 (iii)
Ex 2.2, 2 (iv)
Ex 2.2, 3 (i)
Ex 2.2, 3 (ii)
Ex 2.2, 3 (iii) Important
Ex 2.2, 3 (iv)
Ex 2.2, 3 (v)
Ex 2.2, 3 (vi)
Ex 2.2, 3 (vii) Important
Ex 2.2, 3 (viii)
Ex 2.2, 4 (i)
Ex 2.2, 4 (ii)
Ex 2.2, 4 (iii) Important
Ex 2.2, 4 (iv)
Ex 2.2, 4 (v)
Ex 2.2, 4 (vi) Important
Ex 2.2, 4 (vii)
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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