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Subtract.
[(u)/(6c^3*d)]  [(3c^3*w^3)/(8b^2*d^2)]
Simplify your answer as much as possible
 one year ago
 one year ago
Subtract. [(u)/(6c^3*d)]  [(3c^3*w^3)/(8b^2*d^2)] Simplify your answer as much as possible
 one year ago
 one year ago

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jay3390Best ResponseYou've already chosen the best response.1
Help is greatly appreciated
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
dont know how to do this :/
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
that would be great if you could help!
 one year ago

Tomas.ABest ResponseYou've already chosen the best response.0
\[[(u)/(6c^3*d)]  [(3c^3*w^3)/(8b^2*d^2)]\]
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
dw:1339902311825:dwit's like that right?
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
So what do u think of LCD?
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
im not really sure, i suck at fractions :/
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
dont worry about fractions. it's easy. you have two things: 6c^3*d and 8b^2*d^2 open up, the numbers: 6,8 variables: c^3, d variables: b^2 d^2 agree?
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
So the LCD will be, 6*8 = 48 for variables, c^3 and b^2. now what about d and d^2 we always take the bigger term, so we will take d^2. Therefore our LCD will be, 48*c^3*b^2*d^2
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
oh okay perfect, then what??
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
now, dw:1339902810873:dwDo you get this step?
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
for the most part, yeah
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
What we have to do is, we have to make the denominators same as LCD. so we had 6c^3d.. and we have to make it as 48c^3b^2d^2 we have to multiply 6c^3d with something to make it as 48c^3b^2d^2 so we multiplied by 8b^2d.
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
oh okay and for the numerator??
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
When we multiply that for denominator, we multiply the same thing with numerator.
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
how do i multiply that out though? :/
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
\[\Large \frac{48c^3b^2d^2}{6c^3d} \to8b^2d.\]
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
woah..thats the numerator?
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
that's what u have to multiply with numerator.
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
i must be driving you crazy, lol, but i dont get how to multiply it and simplify afterwards.. :/
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
and tell me where are u stuck.
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
i got the denominator, now i need to get the numerator and then simplify. i know what to multiply but i dont know how :/ i get some super long answer with a bunch of variables
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
whatever you multiply with denominator.. you have to multiply the same thing with the numerator.
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
So now, u(8b^2d) = 8b^2du
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
you forgot to multiply the right denominator and then the numerator.
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
you did it with left one right? now do it with right one as well.
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
so it would be 6c^3*d(3c^3*w^3)?
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
No. since the denominators are different. we will do something like:dw:1339903883124:dw
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
ohh okay and once i get that, the top would be 8b^2du18c^6w^3?
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
Yes sir. that answer over \[\Large \frac{8b^2du18c^6w^3}{48c^3 b^2 d^2}\]
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
okay and does that get simplified further??
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
Yes. you can take commons.
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
b^2 is not in the second term.
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
10b^2*d*u*c^6*w^3/48c^3*b^2*d^2??
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
dw:1339904363228:dw
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
then theres more left to simplify or no?
 one year ago

saifoo.khanBest ResponseYou've already chosen the best response.1
http://i0.kymcdn.com/entries/icons/original/000/007/423/untitle.JPG lol.
 one year ago

jay3390Best ResponseYou've already chosen the best response.1
lol okay, thank you SOOOO much!!
 one year ago
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