Chapter 2 Polynomials

Class 9 NCERT Solutions Mathematics Chapter - 2 Polynomials

📘 Class 9 Maths Exercise 2 – Polynomials (NCERT Solutions, Notes, Video Lectures)

Looking for Class 9 Maths Chapter 2 – Polynomials solutions and notes in English and Hindi? You’re in the right place!

At DaskLibro, we provide 100% accurate NCERT solutions, easy-to-understand notes, free video lectures, and chapter-wise tests – all designed for Class 9 students preparing for CBSE 2025 and RBSE 2025 exams.

🔍 What Are Polynomials?

Polynomials are algebraic expressions made up of terms with variables, constants, and exponents. In this chapter, you will learn:

✅ What is a polynomial?
✅ Monomial, Binomial, and Trinomial
✅ Degree of a polynomial
✅ Coefficients and terms
✅ Standard form of a polynomial
✅ NCERT Exercises 2.1 to 2.4 fully solved

🎯 Why Study With DaskLibro?

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📦 What You’ll Find on This Page:

📘 NCERT Solutions (Exercise 2.1 to 2.4)

Step-by-step answers to all textbook questions, solved in simple Hindi – perfect for board exam preparation.

🖊️ Class Notes (PDF in Hindi and English)

Complete summary of the chapter, formulas, definitions, and solved examples – all in one place.

🎥 Video Lectures (YouTube Playlist)

Watch full chapter explanations – ideal for quick revision before tests.
🔗 Watch the Playlist

📄 Worksheets & Practice Tests

Download chapter-wise worksheets and online quizzes to test your understanding.

💡 Why Is Chapter 2 – Polynomials Important?

Understanding polynomials is the foundation of algebra in higher classes. This chapter prepares you for solving equations, understanding algebraic identities, and working with functions in Class 10 and beyond. Strong basics here will make Chapter 3 (Linear Equations) and Class 10 Factorisation much easier!

✨ Fun Fact:

Did you know? The word “polynomial” comes from the Greek word “poly” (meaning many) and the Latin word “nomial” (meaning terms). So, polynomial = many terms!

📘 Chapter Summary: Polynomials at a Glance

Polynomials are algebraic expressions consisting of variables and coefficients, combined using addition, subtraction, and multiplication. This chapter introduces:

Definition of a Polynomial: An expression like axn+bxn−1+…, where a,b,…,k are constants.
Types of Polynomials:
- Monomial: Single term (e.g., 3x)
- Binomial: Two terms (e.g.,x +2)
- Trinomial: Three terms (e.g., x2+3x+2)
Degree of a Polynomial: The highest power of the variable.
Zero Polynomial: A polynomial with all coefficients zero.
Standard Form: Writing terms in descending order of degree.

🧠 Key Concepts and Formulas

Polynomial Equation: An equation formed by equating a polynomial to zero.
Factor Theorem: If p(a)=0, then (x−a) is a factor of p(x).
Remainder Theorem: The remainder when p(x) is divided by (x−a) is p(a).
Algebraic Identities:
- (a+b)2 =a2+2ab+b2
- (a−b)2=a2−2ab+b2
- a2−b2=(a−b)(a+b)

These identities are instrumental in simplifying and solving polynomial expressions.

Exercise 2.1 Polynomials Solutions

Exercise 2.2 Polynomials Solutions

Exercise 2.3 Polynomials Solutions

Exercise 2.4 Polynomials Solutions

🔻

This page has been thoughtfully created by the DaskLibro Team to help Class 9 students understand and excel in Chapter 2 – Polynomials. All materials are aligned with the latest NCERT and CBSE syllabus .

📘 Reference Book:
NCERT Mathematics – Class 9, Chapter 2: Polynomials
Official NCERT resources are available at ncert.nic.in

🎥 Video Lectures by:
Mayank Jain – Educator & Founder, DaskLibro
📺 Watch the Chapter Playlist on YouTube

DaskLibro is committed to making mathematics easier, smarter, and more enjoyable for every learner. For more chapters, resources, and test series, visit our homepage: www.dasklibro.com

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