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Question
Check whether the following is quadratic equation or not.
`x^2 - 2x - sqrtx - 5 = 0`
Solution
Here it has been given that,
`x^2 - 2x - sqrtx - 5 = 0`
Now, as we can see the above equation clearly does not represent a quadratic equation of the form ax2 + bx + c = 0, because `x^2 - 2x - sqrtx - 5 = 0` contains an extra term `x^(1/2)`, where 1/2 is not an integer.
Hence, the above equation is not a quadratic equation.
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