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## CBSE Guide Quadratic Equations class 10 Notes

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## 10 Mathematics notes Chapter 4 Quadratic Equations

Download CBSE class 10th revision notes for Chapter 4 Quadratic Equations in PDF format for free. Download revision notes for Quadratic Equations class 10 Notes and score high in exams. These are the Quadratic Equations class 10 Notes prepared by team of expert teachers. The revision notes help you revise the whole chapter in minutes. Revising notes in exam days is on of the the best tips recommended by teachers during exam days.

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**CBSE Class–10 Mathematics Revision Notes CHAPTER 04 QUADRATIC EQUATIONS**

1. Quadratic Equations

2. Solution by Factorisation

3. Solution by Completing the Square

4. Nature of Roots

**1.** The equation , is the standard form of a quadratic equation, where a, b and c are real numbers.

**Standard form **or **General form **of a quadratic equation.

In other words, we can say that an equation of order (degree) 2 is called a **quadratic equation**.

**2.** A real number is said to be a root of the quadratic equation , . If the zeroes of quadratic polynomial and the roots of the the quadratic equation are the same.

**3.** If we can factorise into product of two linear factors,then the roots of the quadratic equation can be found by equating each factors to zero.

**4.** The roots of a quadratic equation , are given by provided that . It is called **Quadratic formula**.

**5.** A quadratic equation , has :

(a) Two distinct and real roots, if

(b) Two equal and real roots, if

(c) Two roots are not real, if

**6.** A quadratic equation can also be solved by the method of completing the square.

(i)

(ii)

**7.** Discriminant of the quadratic equation , is given by .

## Quadratic Equations class 10 Notes

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