**Ncert Solutions Chapter 4 Quadratic Equations Exercise 4.3 Q3 Download this solution**

#### 3. Find the roots of the following equations:

#### (i) ,

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by Jashan

**Ncert Solutions Chapter 4 Quadratic Equations Exercise 4.3 Q3 Download this solution**

by Jashan

**Ncert Solutions Chapter 4 Quadratic Equations Exercise 4.3 Q2 Download this solution**

**How to find roots of Quadratic Equation using Quadratic Formula?**

by Jashan

by Jashan

We can solve quadratic equations by factorization, completing square and using quadratic formula. After practicing each method, you will be able to choose the method suitable for the given equation. In this article, we will learn the use of quadratic formula to solve quadratic equations.

To solve any given quadratic equation, we can use quadratic formula:

Let's solve one quadratic equation using Quadratic Formula. Suppose we have quadratic equation

By comparing this quadratic equation with the general quadratic equation , we get and

Putting the values of a, b and c in the quadratic formula we get,

And,

And,

Similarly, we can use quadratic formula to solve any given quadratic equation.

by Jashan

**How to solve the Quadratic Equations by completing square?**

Standard form of quadratic equation is . We will learn completing square process by two different cases. In case 1, we will have and in case 2, we will have .

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