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How to Solve quadratic equations by square root method

In this video the instructor shows how to solve quadratic equation by the square root method. The square root property of equations states that if k is positive and a*a = k, then a is equal to square root of k or -1 times the square root of k. So to solve a quadratic equation by square root property first get the equation in the form of a*a = k. Now apply the square root property explained in the previous step to get the result. The instructor now demonstrates these concepts by solving some examples. For example, if you have a*a = 49 the you can write 49 as 7 multiplied by 7. So the value of 'a' as per the square root property is either +7 or -7. This video shows how to solve quadratic equation by the square root method.

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