Saturday

September 20, 2014

September 20, 2014

Posted by **Jinal** on Sunday, June 3, 2007 at 10:38pm.

thx a lot

Use the following rule:

derivative of u(x)/v(x) =

[v du/dx - u dv/dx]/ v^2

In your case, du/dx = 4x - 12;

dv/dx = 2 (x^2 + x -2)*(2x +1)

v^2 = (x^2 + x - 2)^4

Put it all together

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