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Apr
15
comment Conditions on roots of a quadratic
Can't delete prev. comments. - @JohannesK, Isn't Vieta's formula where we use a discrement to extract the roots? I tried but that didn't work.
Apr
15
comment Conditions on roots of a quadratic
@GerryM, I'd said it was weird from the get go... It did actually use different case letters! - It's from my curriculum book, 10th grade equiv., Egypt.
Apr
15
comment Conditions on roots of a quadratic
But that would make $9a^2c = 2b^2$ which isn't the answer provided. It does seem logical and correct in steps but here they look for how good you followed the book even if it's incorrect. So I just need a confirmation that there's no other way to re-produce the answer provided. - I'll follow your steps and post the second one.
Apr
15
asked Conditions on roots of a quadratic
Mar
23
revised Getting the grip of geometry and Algebra; books and resources for a beginner
added 49 characters in body
Mar
23
revised Getting the grip of geometry and Algebra; books and resources for a beginner
added 49 characters in body
Mar
22
awarded  Student
Mar
22
revised Getting the grip of geometry and Algebra; books and resources for a beginner
Resource 4 added
Mar
21
comment Getting the grip of geometry and Algebra; books and resources for a beginner
I'm afraid I can't try all those due to my bandwidth but I'll sure look for the title you emphasized and see if I could get a link for the whole collection and download it from a cafe or something.
Mar
21
revised Getting the grip of geometry and Algebra; books and resources for a beginner
added 330 characters in body
Mar
20
revised Getting the grip of geometry and Algebra; books and resources for a beginner
added 99 characters in body
Mar
20
awarded  Editor
Mar
20
revised Getting the grip of geometry and Algebra; books and resources for a beginner
Shorter, more concise
Mar
20
asked Getting the grip of geometry and Algebra; books and resources for a beginner