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secondary 3 | A Maths
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Hi, stuck with this A maths question for one whole day. Really need help please, thanks!
Date Posted: 4 years ago
Views: 571
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Weird. The question seems to have a problem.
Date Posted:
4 years ago
I know right! Glad u come to my rescue:) It is a question in my school Textbook. I thought it can't be wrong so I keep working on it for the whole day. Thanks a lot!
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There is a problem in the question, but I suspect they wrongly asked for no real roots when in fact, there should be 2 real roots.
Date Posted:
4 years ago
No; the equation has 1 real root when c = 0 and 2 real roots otherwise.
Thanks for your feedback, I appreciated it very much :)
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The relevant sketches from Desmos to explain why real roots are always obtained. The only case where there is only one real root is when c = 0, when the equation becomes linear instead of quadratic.
Date Posted:
4 years ago
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I agree that there is smth wrong w the question, hope it helps !
Date Posted:
4 years ago
Yes, it is helpful. Thanks a lot !
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