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im an adevertising student and need to take a damn math course to graduate this spring. I need help!!!
(5/2p+3)-(3/p-2)=(4/2p+3)

the numbers in parentheses are actually set up in franctions. so yea. i think i need to find a least common denominator but i have no idea how.
i just don't know! i havent taken a math course in 5 years!!please help me :(

2006-10-07 10:19:41 · 3 answers · asked by sully_angel 1 in Education & Reference Homework Help

3 answers

If the question is about
(5/(2p+3))-(3/(p-2))=(4/(2p+3)),
then the next step is:
(5(p-2)/(2p+3)(p-2))-(3(2p+3)/(2p+3)(p-2))=(4/(2p+3))

So a common denominator is (2p+3)(p-2).

2006-10-07 10:34:27 · answer #1 · answered by DadOnline 6 · 0 0

First you have to multiply both sides by the common denominator your looking for. to find the c.d., multiply the two different types of denominators together( 2p+3 and p-2).
this will give you an easy algebraic equation to wok with

(5/2p+3)-(3/p-2)=(4/2p+3)
((2p+3)(p-2))((5/2p+3)-(3/p-2))
=((2p+3)(p-2))(4/2p+3)
5p-10-6p-9=4p-8
-11=5p
p=(-11/5)

2006-10-07 10:40:08 · answer #2 · answered by guy198 2 · 0 0

I'm not sure what you meant. Is it: 5/(2p+3) ...etc.
or is it: (5/2)p + 3 ...etc.
???

2006-10-07 10:37:12 · answer #3 · answered by Rozz 3 · 0 0

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