Q1 of 293 Page 469

Find the nature of the roots of the following quadratic equations:

12x2 – 4√15x + 5 = 0

Given:

Comparing with standard quadratic equation ax2 + bx + c = 0



Discriminant D = b2 – 4ac



= 240 – 240 = 0


Hence the equation has real and equal roots.


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