Saturday

January 31, 2015

January 31, 2015

Posted by **Count Iblis** on Monday, December 4, 2006 at 2:18pm.

9/25(u+7)u^11 du =

9/25(u^12 + 7 u^11) du

and you can easily integrate this

indefinate integral of 9x(5x-7)^11 dx

using the u substitution method:

i know u= (5x-7) but when i use this the x in the 9x doesn't cancel thus x= (u+7)/5. however when i put this in the equation i have trouble getting the answer. please help.

9x(5x-7)^11 dx =

9/5(u+7)u^11 dx/du du =

9/25(u+7)u^11 du

Note that dx/du = 1/5.

9/25(u+7)u^11 du =

9/25(u^12 + 7 u^11)

**Answer this Question**

**Related Questions**

Calc 121 - How do you integrate using substitution: the integral from 1 to 3 of...

Calculus - Find the integral, using the method of substitution where necessary. ...

calc - Integrate (1/2)^(3x+2)dx using substitution.

CALC 2 - Partial Functions!! - How do I solve Integral of 7/(16-x^2) I know I ...

calculus-integration! - should i use substitution?? if yes how should should i ...

calc asap! - can you help me get started on this integral by parts? 4 S sqrt(t) ...

calc - how do you start this problem: integral of xe^(-2x) There are two ways: 1...

Integral calculus - Please can anyone help with the following problems - thanks...

calculus - We're doing indefinite integrals using the substitution rule right ...

Calculus - How to integrate dx/(4-5 sin x) using t-substitution method(i.e. ...