MCQEasy1 mark
1
Choose the correct answers to the questions from the given options. (Do not copy the questions, write the correct answers only.)
The roots of the quadratic equation px² - qx + r = 0 are real and equal if:
Topic: Quadratic equations
Previous-year question practice database
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Answer
Exam answer
(a) q² = 4pr
Explanation
For equal real roots, discriminant q²−4pr=0.
In words
q² = 4pr
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