Class 9th maths Solutions

Q1: Use suitable identities to find the following products: (i) (x + 4)(x + 10) Ans: Using the identity (x + a)(x […]

Q1. Determine which of the following polynomials has (x + 1) a factor:(i) x3 + x2 + x + 1Ans: Let p(x) =

Q1. Find the value of the polynomial 5x – 4×2 + 3 at (i) x = 0 (ii) x = –1 (iii) x =

Q1. Which of the following expressions are polynomials in one variable and which are not? State reasons for your answer.(i)

Exercise 1.3 Q1. Write the following in decimal form and mention the kind of decimal expansion each has. (i) 36/100Ans:= 0.36

Q1. State whether the following statements are true or false. Justify your answers.(i) Every irrational number is a real number.Ans: True

( Exercise 1.1) – Q1. Is zero a rational number? Can you write it in the form p/q where p