Ex 4.3 | Quadratic Equations | Chapter 4 | Class 10 CBSE Maths (2025)

📘Class 10 Maths | Chapter 4 – Quadratic Equations 🎯 Exercise 4.3 | Step-by-Step Solutions (2025) In this video, we solve Exercise 4.3 from Chapter 4: Quadratic Equations of the CBSE Class 10 Maths NCERT textbook. Watch this video for easy, clear, and step-by-step explanations that will help you master the concepts and improve your exam performance. 🧠 Topics Covered: ✔️ Understanding the nature of roots. ✔️ Understanding the difference between real and non-real roots. ✔️ Conditions for two distinct real roots, equal real roots and no real roots. ✔️ How to find the roots of a given quadratic equation by using the discriminant formula ( D = b² - 4ac ). ✔️ Factorization using Quadratic Formula. ✔️ Representing the real world word examples in the form of quadratic equations and finding the roots. ✔️ Forming quadratic equations by understanding the given statements (Tips and Tricks). ------------------------------------------------------------------------------------------------------------------------- Questions with Timestamps : 00:22 - Introduction to understanding the nature of roots of quadratic equations with discriminant formula. 05:16 - Q1) Find the nature of the roots of the following quadratic equations. If the real roots exist, find them : 05:38 - (i) 2x² – 3x + 5 = 0 07:06 - (ii) 3x² - 4√3 x + 4 = 0 09:37 - (iii) 2x² - 6x + 3 = 0 12:20 - Q2) Find the values of k for each of the following quadratic equations, so that they have two equal roots. 12:20 - (i) 2x² + kx + 3 = 0 13:58 - (ii) kx(x - 2) + 6 = 0 16:34 - Q3) Is it possible to design a rectangular mango grove whose length is twice its breadth, and the area is 800 m² ? If so, find its length and breadth. 20:55 - Q4) Is the following situation possible? If so, determine their present ages. The sum of the ages of two friends is 20 years. Four years ago, the product of their ages in years was 48. 25:15 - Q5) Is it possible to design a rectangular park of perimeter 80 m and area 400 m² ? If so, find its length and breadth. ------------------------------------------------------------------------------------------------------------------------- 📚 Perfect for: ✅ CBSE Board Exam Preparation ✅ Class 10 Maths NCERT Chapter 4 Solutions ✅ Students of CBSE, ICSE, and State Boards ✅ Teachers, Parents, and Home Tutors ------------------------------------------------------------------------------------------------------------------------- 👉 Watch Ex 4.1 | Quadratic Equations | Class 10 CBSE Maths (2025) :    • Ex 4.1 | Quadratic Equations | Class 10 CB...   👉 Ex 4.2 | Quadratic Equations | Chapter 4 | Class 10 CBSE Maths (2025) :    • Ex 4.2 | Quadratic Equations | Chapter 4 |...   👉Watch Quadratic equations Full playlist :    • Chapter 4 : Quadratic equations ( All Exer...   👉 Watch Chapter 3 Full Playlist:    • Pair of Linear Equations in Two Variables   🔔 Don't forget to like, comment, share, and subscribe to our channel for more Maths videos, quizzes, and tricks!