Quadratic Equations — Important Questions
CBSE · Class 10 · Mathematics
151 important questions from Quadratic Equations for CBSE Class 10 Mathematics, with answers. Written for the board exams 2027.
Interactive on Super Tutor
Studying Quadratic Equations? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for important questions and more.
Free trial, no card needed.
One of 5 illustrations for Quadratic Equations in Super Tutor — alongside flashcards, concept maps and practice questions.
Important Questions from Quadratic Equations
What is the quadratic formula?
Show answer
x = -b ± √(b² - 4ac) / 2a
This formula helps find the roots of a quadratic equation directly.
When b² - 4ac = 0, what type of roots does the quadratic equation have?
Show answer
Two equal real roots
When the discriminant is zero, the equation has two identical real roots.
In the equation 2x² + x - 300 = 0, what is the value of 'a'?
Show answer
2
The coefficient of x² is 2, so 'a' is 2.
Who is credited with deriving the quadratic formula by the method of completing the square?
Show answer
Sridharacharya
Sridharacharya (C.E. 1025) derived the quadratic formula using the method of completing the square.
+147 more questions on Quadratic Equations (CBSE Class 10 Mathematics)
Practise AllFrequently Asked Questions
What are the important topics in Quadratic Equations for CBSE Class 10 Mathematics?
How many important questions are there in Quadratic Equations?
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Quadratic Equations
Practice Quiz
Test yourself with a quick quiz
Revision Notes
Key points for last-minute revision
Formula Sheet
The chapter's formulas in one place
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect
Study Plan
Step-by-step plan for this chapter
Flashcards
Quick-fire cards for active recall
Syllabus
What topics to cover
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Quadratic Equations chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for CBSE Class 10 Mathematics. Free to start, no card needed.