Question 84118: When the discriminant is positive, or b2 - 4ac > 0, expect ___ root(s). Use cardinal numbers (0,1,2,...) to fill in the blank.
When the discriminant equals zero, or b2 - 4ac = 0, expect ___ root(s). Use cardinal numbers (0,1,2,...) to fill in the blank.
When the discriminant is negative, or b2 - 4ac < 0, expect ___ root(s). Use cardinal numbers (0,1,2,...) to fill in the blank.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! When the discriminant is positive, or b2 - 4ac > 0, expect 2 unequal root(s). Use cardinal numbers (0,1,2,...) to fill in the blank
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When the discriminant equals zero, or b2 - 4ac = 0, expect 2 equal root(s). Use cardinal numbers (0,1,2,...) to fill in the blank.
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When the discriminant is negative, or b2 - 4ac < 0, expect 2 complex root(s). Use cardinal numbers (0,1,2,...) to fill in the blank.
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Comment: These are ambiguous questions. The answers could be 2,1,0 also;
it depends on what you accept as a root. In general a quadratic always has
2 roots. They may be Real and unequal, Real and equal, or Complex and unequal.
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Cheers,
Stan H.
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