NCERT class 9 maths chapter 2 Polynomials
Question 1:Find the value of the polynomial 5x – 4x2 + 3 at (i) x = 0 (ii) x = –1 (iii) x = 2
Exercise 2.2 maths class 9 Chapter 2 Polynomials
Question 2:Find p(0), p(1) and p(2) for each of the following polynomials: (i) p(y) = y2 – y + 1 (ii) p(t) = 2 + t + 2t2 – t3 (iii) p(x) = x3 (iv) p(x) = (x – 1) (x + 1)
CBSE class 9 maths ncert solutions Chapter 2
Question 3:Verify whether the following are zeroes of the polynomial, indicated against them. (i) p(x) = 3x + 1, x = 1 – 3 (ii) p(x) = 5x – , x = 4 5 (iii) p(x) = x2 – 1, x = 1, –1 (iv) p(x) = (x + 1) (x – 2), x = – 1, 2 (v) p(x) = x2, x = 0 (vi) p(x) = lx + m, x = – m l (vii) p(x) = 3x2 – 1, x = 1 , 2 3 3 − (viii) p(x) = 2x + 1, x = 1 2
Question 4:Find the zero of the polynomial in each of the following cases: (i) p(x) = x + 5 (ii) p(x) = x – 5 (iii) p(x) = 2x + 5 (iv) p(x) = 3x – 2 (v) p(x) = 3x (vi) p(x) = ax, a 0 (vii) p(x) = cx + d, c 0, c, d are real numbers.