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Find the value of k for which the equation x^2 + kx + 9 = 0 has one real solutio
Practice Questions
Q1
Find the value of k for which the equation x^2 + kx + 9 = 0 has one real solution.
-18
-9
0
9
Questions & Step-by-Step Solutions
Find the value of k for which the equation x^2 + kx + 9 = 0 has one real solution.
Steps
Concepts
Discriminant
– The discriminant of a quadratic equation determines the nature of its roots. For one real solution, the discriminant must equal zero.
Quadratic Formula
– The quadratic formula is used to find the roots of a quadratic equation, and it involves the coefficients of the equation.
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