Class 9 Polynomials Important Questions Using suitable identity determine the value of :- (17)3 + (-12)3 + (-5)3 64m3 – 343n3 Factorise :- 2y3 – 4y2 – 2y + 4 2×2 + 7x + 3 Factorise : (a-b)3 + (b-c)3 + (c-a)3 If (a + b + c) = 15 and a2 + b2 + […]
Polynomials Quiz – 2 [WATU 25]
Polynomials Quiz – 1 [WATU 24]
Exercise 2.1 Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer:-(i) 4×2– 3x + 7(ii) y2+√2(iii) 3√t+t√ 2(iv) y+(v) x10+y3+t50Sol:- (i) 4×2–3x+7 is a polynomial in one variable. The equation 4×2–3x+7 can be written as 4×2–3×1+7×0 and since x is the only variable in the given equation […]