SOLUTION: 2. Calculate the discriminant to determine the number of real roots.
y = x^2 + 3x + 9
How many real roots does the equation have? (Points : 5)
A. One real root
B. Two real
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Question 941422: 2. Calculate the discriminant to determine the number of real roots.
y = x^2 + 3x + 9
How many real roots does the equation have? (Points : 5)
A. One real root
B. Two real roots
C. No real roots
D. No solution to the equation
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
=>In this case ,,
The discriminant is :
If the value is and a Perfect Square there are Two Real Rational Solutions
If the value is and is not a Perfect Square there are Two Real Irrational Solutions
If the value is there is One Real Solution
If the value is there are No Real Solutions, there are Two Imaginary Solutions
in your case which is < then ;
so, answer is C. No real roots
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