Greatest root. (1 Viewer)

zeebobDD

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i highly doubt these types of questions will be hsc material.
 

barbernator

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the name is ironic for all of us posting in this thread.
 

Fus Ro Dah

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i highly doubt these types of questions will be hsc material.
Yes, it is HSC material. The methodology is purely elementary.

Suppose it's not HSC material, does that mean you simply ignore it? I would still do it to try to better myself overall.
 

barbernator

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for this solution, is it enough to show that the root satisfies the equation and say that the root lies to the right of the min stat point, and therefore it is the greatest root?
 

Fus Ro Dah

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for this solution, is it enough to show that the root satisfies the equation and say that the root lies to the right of the min stat point, and therefore it is the greatest root?
Yep, that would be right, but of course we would need to show that with working out and a bit of justification.
 

Fus Ro Dah

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Oh sorry everyone! I made a typo, there should be a 4 in front.
 

barbernator

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It isn't in the syllabus mate
this question is very much within the syllabus. It is just a general application of theory on cubic functions. There was an Ext 1 q7 a couple of years back which was similar to this
 

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