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**What Do you Understand About the Quadratic Equation?**

A quadratic function or simply quadratics is a polynomial equation with the greatest degree of two. It appears as:

ax²+bx+c=0 ,

here x is the unknown variable whereas the a,b, and c are constant terms.

The variable x’s power is always a positive integer and the values of x are commonly known as zeroes of the equation and generally are the answer to the provided equation. The polynomial’s zeroes are the solutions that satisfy the equation. Because this is a quadratic equation so it will have two roots or two zeroes. By inserting the values of roots or x in the equation’s left-hand side it will result in giving out zero. This is the reason they are known as zeroes.

The roots or zeros of the **quadratic equation** are found by using the formula:

If the given equation is ax²+bx+c=0 then x = [-b±√(b2-4ac)]/2a

Here the equation will have two solutions due to the fact that quadratics have degree two. Here the plus and minus symbol implies having two answers for x.

There are four different ways to solve a quadratic equation which are by factoring, completing the square, applying the quadratic formula, and lastly by taking the square root.

In the method of factoring, start by solving the equation and make sure it is set to an appropriate zero. After his favor, the left-hand side of the equation gives each component a value of zero. Now start solving the equation to get the values of x.

Similarly, the other methods work as well.

Always start by solving the equation ax²+bx=c=0. After you have assumed the right-hand side of the equation as zero starts solving the left-hand side.

**Few Examples of Quadratic Equations **

Here are certain examples of quadratic equations:

- 2x²-4x-2=0
- 6x²+11x+35=0
- 4x²+7x-12=0

Sometimes b term is zero so :

- 6x²+144=0
- x²-16=0
- 4x²+81=0

Sometimes the term c might be zero :

- x²-2x=0
- -x²-9x=0
- -6x²-2x=0

And so on there are various examples of quadratic equations and these all can be solved by the above-mentioned **methods** to obtain their roots or zeros.

Now here are a few examples to show you how these above-mentioned methods work.

First up we have the method where we apply the quadratic formula in an equation.

**Example 1: ** 2x²-4x-2=0

**Solution:**

- As we have the given equation in the form of ax²+bx+c=0.
- Now putting it in the formula we get the values of zeros or roots that are 1+√2 and 1-√2.
- Second up we have another method of factoring in an equation.

**Example 2:** 4x²-2x-12=0

**Solution:**

- As we have the given equation in the form of ax²+bx+c=0. Now factorizing it as, 4x²-8x+6x-12=0
- (2x+3)(x-2)=0
- Equating it to zero we get the zeroes as x=-3/2 and 2.

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