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jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0\[\sqrt[3]{x^2+4x}\]

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0i know that u = x^2+4x so du = (2x+4)dx where do i go from there?

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0@agent0smith @Dido525

AtiFS
 one year ago
Best ResponseYou've already chosen the best response.0well u multipl that by 1/3 too

AtiFS
 one year ago
Best ResponseYou've already chosen the best response.01/3 dx (x^2 + 4x) = 1/3* (2x + 4)..I think so

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0how did you get that? can u explain?

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0cuz du = (2x+4)dx = (2(x+2))dx so 1/2du = (x+2)dx then...?

AtiFS
 one year ago
Best ResponseYou've already chosen the best response.0actually, the value of power multplies..hmm du = 1/3*(2x + 4)dx => 3*du = (2x + 4)dx

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1I'm pretty sure you need to either do a TrigSub, or IntegrationByParts might also be possible. No USub available though :( Have you learned either of those methods yet?

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0yeah the substitution method.

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0i think so? remind me what that is?

Kainui
 one year ago
Best ResponseYou've already chosen the best response.0I think you might want to add and subtract +4 and 4 under the cube root so that you can factor.

AtiFS
 one year ago
Best ResponseYou've already chosen the best response.0google the concept behind it :)

beginnersmind
 one year ago
Best ResponseYou've already chosen the best response.0idk how to do this, I'm just posting so that I get notified when someone answers it.

Kainui
 one year ago
Best ResponseYou've already chosen the best response.0I could reduce it down so that it becomes \[2^{3/5}\int\limits_{}^{}\tan^{3/5} \theta \sec \theta d \theta\] after making the substitution: \[(x+2)=2\sec \theta\]

Kainui
 one year ago
Best ResponseYou've already chosen the best response.0the fraction should be 5/3 not 3/5 on the 2 and tan(theta)

AtiFS
 one year ago
Best ResponseYou've already chosen the best response.0this link will help you :) http://www.themathroom.ca/freebs/cali3/cali3.htm

Kainui
 one year ago
Best ResponseYou've already chosen the best response.0I can't seem to crack it. You're in calculus 1 or 2?

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0where did the tangent, secant stiff come from?

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Ah sorry I was busy :C Kanoo been helping you? c:

Kainui
 one year ago
Best ResponseYou've already chosen the best response.0I was doing trigonometric substitution, but you don't learn that until cal 2. If there's an easier way with just using usub then I would be surprised! Good luck zeppy! =P

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Ya I dunno sorry Jenny :c This doesn't seem like a problem you should be doing yet, hmm.

Kainui
 one year ago
Best ResponseYou've already chosen the best response.0Check this out: http://www.wolframalpha.com/input/?i=(x%5E2%2B4x)%5E1%2F3dx&t=crmtb01 I've never even heard of that stuff. Hypergeometric function? lol

zepdrix
 one year ago
Best ResponseYou've already chosen the best response.1Woah that looks fun :O

cinar
 one year ago
Best ResponseYou've already chosen the best response.1the last sub. should be u=2cosht

cinar
 one year ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=%28sinht%29^%285%2F3%29dt

cinar
 one year ago
Best ResponseYou've already chosen the best response.1I do not have enough information to solve this question..

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0g is the antiderivative function if g(5) = 7, then g(1) = ?

cinar
 one year ago
Best ResponseYou've already chosen the best response.1why are giving this info now, you should mention this at the beginning.. come on..

cinar
 one year ago
Best ResponseYou've already chosen the best response.1http://www.freemathhelp.com/forum/archive/index.php/t49380.html?s=81349e7c156e89af0e48100743b7ef6d

cinar
 one year ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=integrate+%28x^2%2B4x%29^%281%2F3%29dx+from+x%3D1+to+5

jennychan12
 one year ago
Best ResponseYou've already chosen the best response.0thanks for trying to help. :)
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