Question
Question: The roots of the equation ax<sup>2</sup> – 2hx + b = 0 are real and different if...
The roots of the equation ax2 – 2hx + b = 0 are real and different if
A
h2< ab
B
h2 = ab
C
h2> ab
D
h2> 4ab
Answer
h2> ab
Explanation
Solution
Roots are real & different
\ B2 – 4AC > 0 common.
4h2 – 4ab > 0
h2 – ab > 0 h2 > ab