concept
Examples 4 to 6
(4) Discuss the nature of the roots of the following equations :
(i) 4x2 + 15x – 25 = 0
(ii) 4x2 – 12x + 1 = 0
(iii) 9x2 + 6x + 1 = …
Examples 1 to 3
Examples :
(1) Solve the equations :
(i) 3x2 + 5x + 2 = 0
(ii) 3x2 – 5x + 2 = 0
(iii) 3x2 + 5x – 2 = 0