If a, b, c are positive real numbers in 9x² + bx + c = 0 the root will be _____?
- Negative real numbers
- Positive real numbers
- Imaginary
- None of these
Explanation
In ax² + bx + c = 0, if > 0, b > 0, and c > 0, the parabola opens upward and lies entirely above the x-axis unless discriminant D = b² - 4ac ≥ 0.
If real roots exist, they are negative because both b and c are positive.
Related MCQs
- 25
- 30
- 35
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 10x = - 3
- 2x = - 27
- 2x = 27
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 1, 4, -21
- 1, 4, 21
- -1, 4, -21
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 2/x + 12/(x +5)
- 3/x + 22/(x +5)
- 4/x + 16/(x +5)
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Leave a Reply
Your email address will not be published. Required fields are marked *
