1.

Write the discriminant of quadratic equation:x2 + 2x + 4 = 0

Answer»

Given equation,

x2 + 2x + 4 = 0

It is in the form of ax2 + bx + c = 0

Where, a = 1, b = 2 and c = 4

So, the discriminant is given by D = b2 – 4ac

D = (2)2 – 4 x 1 x 4

D = 4 – 16 

= – 12

Hence, the discriminant of the given quadratic equation is – 12.



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