Question 2 - End-of-Chapter Exercises - Chapter 2 Class 9 - Introduction to Linear Polynomials (Ganita Manjari

Transcript

Question 2 (i) Find the values of the following polynomials at the indicated values of the variables. (i) 5x2 – 3x + 7 if x = 1 Let p(x) = 5x2 – 3x + 7 Putting x = 1 p(1) = 5(1)2 – 3(1) + 7 = 5 – 3 + 7 = 9 Question 2 (ii) Find the values of the following polynomials at the indicated values of the variables. (ii) 4t3 – t2 + 6 if t = a Let p(t) = 4t3 – t2 + 6 Putting t = a p(a) = 4a3 – a2 + 6