polepole
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\int(X + 2)/\sqrt{3X-1}
one of my attempts: u=3X-1 , du/3=dX , x = (u+1)/3
1/3\int(u+7).du/\sqrt{u} = 1/3\intu .du/\sqrt{u} + 7/3 \intdu/\sqrt{u} = 1/3\intu .du/\sqrt{u} + 14/3. sqrt{u} = stuck...
the answer should be 2/27 . (3X + 20) .\sqrt{3X-1}
one of my attempts: u=3X-1 , du/3=dX , x = (u+1)/3
1/3\int(u+7).du/\sqrt{u} = 1/3\intu .du/\sqrt{u} + 7/3 \intdu/\sqrt{u} = 1/3\intu .du/\sqrt{u} + 14/3. sqrt{u} = stuck...
the answer should be 2/27 . (3X + 20) .\sqrt{3X-1}