Concept explainers
To find: Weather the by discriminant method that quadratic equation has two unequal real solutions, a repeated real solution or no real solution.
Answer to Problem 106AYU
The equation has one repeated real solutions.
Explanation of Solution
Given information:
The quadratic equation is
Calculation:
The discriminant of a quadratic equation
If the discriminant is positive the equation will have two real solutions.
If discriminate is zero the equation have one repeated real solution.
If discriminant is negative then the equation has no real solution.
Consider the expression
Here,
Calculate discriminant.
Since the discriminant is zero the equation will have one repeated real solution.
Therefore, the equation has one repeated real solution.
Chapter A Solutions
Precalculus
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