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PS Fourth Degree Equations
This is from a Kaplan practice test: If 4y^4 − 41y^2 + 100 = 0, then what is the sum of the two greatest possible values of y ? a) 4 b) 9/2 c) 7 d) 41/4 e) 25 OA is b. [/url] Can anyone please help and explain how to solve 4th degree equations. Say z=y^2 Then we can rewrite the equation as: 4z^2-4...
- by rodalvarezz
Mon Nov 14, 2011 9:49 pm- Forum: Problem Solving
- Topic: PS Fourth Degree Equations
- Replies: 4
- Views: 1585
Hi Deepsun, how do you get that the radius is 2/3 of the height... I understand everything else but I cannot get that. Is this always true from an equilateral triangle inscribed in a circle?
Thanks[/quote]
- by rodalvarezz
Wed Sep 14, 2011 9:30 am- Forum: Problem Solving
- Topic: Triangle inside a circle
- Replies: 8
- Views: 12247
Should you take the GMAT immediately after a Prep Course?
I know there is not a right answer for this question but based on your experience what would you think is the ideal time to present the GMAT after taking a Prep Course? I just enrolled in a MGMAT Prep Course and it will end on 08/09/11. So I am planning to take the GMAT exactly 1 week after that. In...
- by rodalvarezz
Tue Jun 07, 2011 10:16 am- Forum: GMAT Strategy
- Topic: Should you take the GMAT immediately after a Prep Course?
- Replies: 1
- Views: 1412
How to send private messages
Hi, First of all this site has been very helpful in my preparation for the exam. I have been more of a passive reader than an active user. I must say that all contributions are very helpful, there are a lot of inspirational things here and I am very thankful for that. Today I tried to send a private...
- by rodalvarezz
Sun Jun 05, 2011 9:41 am- Forum: GMAT Strategy
- Topic: How to send private messages
- Replies: 1
- Views: 1047
Eric, The questions are mix of PS and DS, so I am not sure if you like to move this into PS forum only. Anyway, I am absolutely OK with what you feel best organizes the forum posts. ------------------------------------------------------------------------------------- OK, here is a question and I di...
- by rodalvarezz
Fri Jun 25, 2010 6:20 am- Forum: GMAT Math
- Topic: Day 1 - questions
- Replies: 9
- Views: 3035