Algebraeasy · Past Paper
Which condition makes the roots of ax^2 + bx + c = 0 real and distinct?
Ab^2 - 4ac > 0
Bb^2 - 4ac = 0
Cb^2 - 4ac < 0
Db^2 - 4ac ≥ 0
✓ Correct Answer: A — b^2 - 4ac > 0
D > 0 ensures two different real numbers are produced by the quadratic formula.
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