August 13th, 2008, 10:06 PM  #1 
Newbie Joined: Aug 2008 Posts: 4 Thanks: 0  Need help to solve few problems :(
Hello all, Im new to this forum and im not sure if this is the right place to post I need help in solving the following precalculus questions I do understand some of the steps but I always get lost and cannot solve them Can someone please help me solve them? I really need to do them for tomorrow I hope I'm not asking for much here's the link to the problems: http://i187.photobucket.com/albums/x17/ ... oblems.jpg greets, amero 
August 14th, 2008, 03:25 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,298 Thanks: 1971 
1.Condense the expressions to the logarithm of a single quantity: a) b) 2. Simplfy the expression by removing the common factor with the smaller exponent: 3. Perform the operations and simplify: (or you might consider a slightly different form is "simplest") 4. Use the vertex formula to determine the vertex of the graph of the function and write the function in standard form: 5. Solve the equation: Cube, then factorize as (8x + 1)(2x  4). Hence x = 1/8 or 2. 6. Since the exponent is zero, the value of the expression is 1. 
August 14th, 2008, 10:10 AM  #3 
Newbie Joined: Aug 2008 Posts: 4 Thanks: 0  Re: Need help to solve few problems :(
thx a lot man! now i just need 3 more that I'm also stuck on for the problem 1. a) i get the answer 12 / 5a .. is that correct? Can anyone please help http://i187.photobucket.com/albums/x17/ ... lems1.jpg (I'm sorry that i give it in link but i have no idea how to write in LAteX ) greets and again I'm sorry if I'm asking for much :P 
August 14th, 2008, 11:54 AM  #4 
Global Moderator Joined: Dec 2006 Posts: 20,298 Thanks: 1971 
1. Solve each radical in simplest form: a) b) 2. Simplify by rationalizing the denominator: 3. Solve: x = (1/2  1/2)/(3/2  2/7) = 14/17 4. Write in standard form: Which three of these four did you need help on? 

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