Q1Multiple choiceExercise 4.4
Find whether the following equations have real roots. If real roots exist, find them.
- (i)8x2 + 2x – 3 = 0
- (ii)–2x2 + 3x + 2 = 0 1 1 3
- (iii)5x2 – 2x – 10 = 0
- (iv)+ =1, x ≠ ,5 2x −3 x −5 2 (v) x2 + 5 5 x – 70 = 0
Find whether the following equations have real roots. If real roots exist, find them.