Free download NCERT Solutions for class 10 Maths chapter 4 Exercise 4.1 Quadratic Equations View in Video Format in Hindi Medium and English Medium PDF form for CBSE Board as well as UP Board & Uttarakhand Board students using NCERT Books. Download Class 10 Apps and Solutions of other subjects for offline use.

Class 10: | Maths – गणित |

Chapter 4: | Quadratic Equations (Exercise 4.1) |

Table of Contents

## NCERT Solutions for class 10 Maths chapter 4 Exercise 4.1

All solutions are updated as per the suggestions received by students/teachers/parents based on latest CBSE Syllabus 2019-2020. These solutions are available do download (Exercise 4.1) in PDF form or view it online given below. Download Class 10 Maths App for offline use as well as कक्षा 10 गणित App for offline use.

### Class 10 Maths Chapter 4 Solutions – English Medium

NCERT Solutions for class 10 Maths chapter 4 Exercise 4.1 Quadratic Equations all question-answers in English to online to view. Click here to go back to Class 10 Maths Chapter 4 solutions. If you need Chapter 4 Exercise 4.1 in Hindi Medium. CLICK HERE for Hindi Medium or View in Video Format Solutions.

### कक्षा १० गणित की प्रश्नावली ४.१ के हल – हिंदी माध्यम

NCERT Solutions for class 10 Maths chapter 4 Exercise 4.1 Quadratic equations in Hindi medium are given below. Click here to move to Class 10 Maths Chapter 4 to see other exercises. Go back to English Medium or View in Video Format Solutions.

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### 10 Maths Chapter 4 Exercise 4.1 Sols in Video

NCERT Solutions for class 10 Maths Exercise 4.1 in video format with complete description.

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*Quadratic Equation*: An equation of the form ax² + bx + c = 0, a ≠ 0 is called a quadratic equation in one variable x, where a, b and c are constants. For example 2 x² – 3x + 1 = 0*Roots of a Quadratic Equation*: Let ax² + bx + c = 0, be a quadratic equation. If α is a root of this equation. It means x = α satisfies this equation i.e., aα² + bα+ c = 0.*Discriminant*: For the quadratic equation ax² + bx + c = 0 the expression is called the discriminant and denoted by D. Then the roots of the quadratic equation are given by (–b ± √D)/2a.

###### Must Remember

*Number of Roots*: A quadratic equation has two roots, one roots or no roots, it is depending the value of D.- If D > 0, it has two distinct real roots.
- If D = 0, it has two equal roots.
- If D < 0, there is no real roots.

*Methods for Solving Quadratic Equation*- By factorization
- By completing the square
- By Quadratic Formula

*Quadratic Formula*to find roots of ax² + bx + c = 0 is given by x = (– b – √D)/2a and x = (– b + √D)/2a.

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480 x 8 = 3840 , there is a mistake in your answer 5 .