hey i am new around here, i am just trying to integrate: (x+1)sqrt(x^2+2x-5) not too sure, but i made u = x^2+2x-5, then du/dx = 2x +2 help?
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Originally Posted by iExcavate hey i am new around here, i am just trying to integrate: (x+1)sqrt(x^2+2x-5) not too sure, but i made u = x^2+2x-5, then du/dx = 2x +2 help? So $\displaystyle (x+1)dx = \frac{du}{2}$ and your integral becomes $\displaystyle \frac{1}{2} \int u \sqrt{u}\,du$
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