# NCERT Class 9 Mathematics Chapter 2 Introduction to Linear Polynomials Solutions: In-Text and Exercise Questions Explained | SwaVid

This chapter, 'Polynomials', introduces fundamental concepts related to algebraic expressions. It covers the definition of polynomials, their terms, coe...

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# Introduction to Linear Polynomials

## Find the gaps before this chapter finds them for you.

## Related chapters

Chapter 2 · Class 9 Mathematics

This chapter, 'Polynomials', introduces fundamental concepts related to algebraic expressions. It covers the definition of polynomials, their terms, coefficients, and variables. A key focus is on understanding the degree of a polynomial, which is then used to classify them as linear, quadratic, or cubic. The exercises provided help students identify polynomials in one variable, determine their degree, and categorize them based on the number of terms or their degree.

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In-text Questions (Page 32)

Answer: 2x: Monomial
2: Monomial
5x^3: Monomial
7y: Monomial
y^2 + y + 4: Trinomial
x^2 + 5x: Binomial
2x^2 + 5x – 3: Trinomial
4x^3 – 5x^2 + 8x + 2: Polynomial (4 terms)

Exercise 2.1 (Page 36)

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- A monomial has one term.
- A binomial has two terms.
- A trinomial has three terms.
- 2x has one term, so it is a monomial.
- 2 has one term, so it is a monomial.
- 5x^3 has one term, so it is a monomial.
- 7y has one term, so it is a monomial.
- y^2 + y + 4 has three terms, so it is a trinomial.
- x^2 + 5x has two terms, so it is a binomial.
- 2x^2 + 5x – 3 has three terms, so it is a trinomial.
- 4x^3 – 5x^2 + 8x + 2 has four terms, so it is a polynomial but not a monomial, binomial, or trinomial.
- NCERT Class 9 Mathematics textbook: Ganita Manjari : Chapter 2: Introduction to Linear Polynomials

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