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August 13th, 2008, 10:06 PM   #1
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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
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August 14th, 2008, 03:25 AM   #2
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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.
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August 14th, 2008, 10:10 AM   #3
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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/ ... lems-1.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
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August 14th, 2008, 11:54 AM   #4
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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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