CBSE Class 10 · Mathematics
Quadratic equations
10 practice questions, each with the answer and an explanation.
Practise Quadratic equations now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 10 questions
- Find the discriminant of .
- Find the discriminant of .
- Find the discriminant of .
- Find the discriminant of .
- Find the discriminant of .
- Find the discriminant of .
- For what positive value of k does the quadratic equation (k - 12) x^2 + 2(k - 12) x + 2 = 0 have real and equal roots?
- If the roots of the equation x^2 + p x + q = 0 differ by 1, which relation between p and q is correct?
- A motorboat whose speed is 18 km/h in still water takes 1 hour more to go 24 km upstream than to return downstream to the same spot. What is the speed of the stream?
- Solve for x: (1 / (x + 4)) - (1 / (x - 7)) = 11 / 30, where x ≠ -4, 7.
Keep practising
More CBSE Class 10 topics
- Number Systems and Algebra54 questions
- Chemical Substances - Nature and Behaviour54 questions
- Geometry and Trigonometry53 questions
- Life Processes and Physical Phenomena53 questions
- Science essentials29 questions
- Arithmetic progressions12 questions
- Coordinate geometry12 questions
- Probability8 questions