RS Aggarwal Chapter 2 Class 9 Maths Exercises 2.4 (ex 2d) Solutions

RS Aggarwal Chapter 2 Class 9 Maths Exercise 2.4 Solutions: In this chapter, we shall start our study with a particular type of algebraic expression, called polynomial, and the terminology related to it. We shall also study the Remainder Theorem and Factor Theorem and their use in the factorization of polynomials. In addition to the above, we shall study some more algebraic identities and their use in factorization and in evaluating some given expressions

Download RS Aggarwal Chapter 2 Class 9 Maths Exercise 2.4 Solutions

EXERCISE 2D

Important Definition for RS Aggarwal Chapter 2 Class 9 Maths Ex 2d Solutions

A polynomial p(x) denoted for one variable ‘x’ comprises an algebraic expression in the form:

p(x) = anxn + an-1xn-1 + ….. + a2x2 + a1x + a0 ; where a0, a1, a2, …. an are constants where an ≠ 0

1. Any real number; let’s say ‘a’ is considered to be the zero of a polynomial ‘p(x)’ if p(a) = 0. In this case, a is said to be the mysqladmin of the equation p(x) = 0.
2. Every one-variable linear polynomial will contain a unique zero, a real number that is a zero of the zero polynomial, and a non-zero constant polynomial that does not have any zeros.
3. Remainder Theorem: If p(x) has a degree greater than or equal to 1 and p(x) when divided by the linear polynomial x – a will give the remainder as p(a).
4. Factor Theorem: x – a will be the factor of the polynomial p(x), whenever p(a) = 0. The vice-versa also holds true every time.

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