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Check whether the following is quadratic equation or not.

*x*^{2} + 6*x* − 4 = 0

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#### Solution

Here it has been given that,

*x*^{2} + 6*x* - 4 = 0

Now, the above equation clearly represents a quadratic equation of the form ax^{2} + bx + c = 0, where a = 1, b = 6 and c = -4.

Hence, the above equation is a quadratic equation.

Concept: Quadratic Equations

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