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If the roots of (7x^2-(p+6)x+28=0) are (2) and (2), what is (p)?
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Answer and explanation
Correct answer: (p=22)
The sum of roots is (4), and (\frac{p+6}{7}=4), so (p=22). In exams, use (-\frac{b}{a}) for the sum.
Frequently asked questions
What is the correct answer to this question?
(p=22)
Why is this the correct answer?
The sum of roots is (4), and (\frac{p+6}{7}=4), so (p=22). In exams, use (-\frac{b}{a}) for the sum.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Methods of Solving Quadratic Equations.
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