Find the roots of x2 + 4x + 5 = 0 quadratic equations, if they exist – InterviewSolution

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1.

Find the roots of x2 + 4x + 5 = 0 quadratic equations, if they exist, using the quadratic formula.

Answer»

x² + 4x + 5 = 0. Here, a = 1, b = 4, c = 5. So, b² – 4ac = 16 – 20 = – 4 < 0.

Since the square of a real number cannot be negative, therefore √b²-4ac not have any real value.

So, there are no real roots for the given equation.

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