alleryFor x² + 4x + 13 = 0, find the discriminant and classify roots.
AD=−36, no real roots
BD=−36, two real roots
CD=0, equal roots
DD=36, two real roots
Answer & Solution
Correct answer: A. D=−36, no real roots
D = 16 − 52 = −36 < 0, so the equation has no real roots.
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