0 reads0 ratings0 helpful
In (x^2+kx+81=0), if the roots are equal and negative, which possible value of (k) is correct?
Advertisement
Answer and explanation
Correct answer: (18)
For equal roots, (k^2=324), and the equal root is (-\frac{k}{2}). For a negative root, (k=18) is correct.
Frequently asked questions
What is the correct answer to this question?
(18)
Why is this the correct answer?
For equal roots, (k^2=324), and the equal root is (-\frac{k}{2}). For a negative root, (k=18) is correct.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Introduction to Quadratic Equations.
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
Advertisement