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Question

Check whether the following equation will have two distinct real or imaginary or two real equal roots.
x23x+5=0.

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Solution

Given the quadratic equation is
x23x+5=0.

Now discriminant of this equation will be
b24ac=(3)24×5×1
=920
=11.

As the discriminant <0 then the quadratic equation will have imaginary roots.

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