Free download NCERT Solutions for class 10 Maths chapter 4 Exercise 4.1 Quadratic Equations in Hindi Medium and English Medium PDF form for CBSE Board as well as UP Board & Uttarakhand Board students using NCERT Books. All solutions are updated as per the suggestions received by students/teachers/parents based on latest CBSE Syllabus 2018-2019. These solutions are available do download (Exercise 4.1) in PDF form or view it online given below.

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

### 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 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 Solutions.

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#### Important Terms Related to Quadratic Equations

*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 .