Q5 of 168 Page 7

Without solving, determine whether the following equations have real roots or not. If yes, find them:

d = b² – 4ac

d = 0

Since, d = 0, roots are real and equal for the given equation.

Comment upon the nature of roots of the following equations:

x² + 10x + 39 = 0

Without solving, determine whether the following equations have real roots or not. If yes, find them:

2x²— 4x + 3 = 0

Without finding the roots, comment upon the nature of roots of each of the following quadratic equations:

2x²— 6x + 3 = 0

Without finding the roots, comment upon the nature of roots of each of the following quadratic equations:

2x² — 5x — 3 = 0