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(1)
∫ dx/(3-2x)^(1/3)
=(-1/2)∫ d(3-2x)/(3-2x)^(1/3)
=-(3/4)(3-2x)^(2/3) +C
(2)
∫ x.e^(-x^2) dx
=-(1/2)∫e^(-x^2) d(-x^2)
=-(1/2)e^(-x^2) + C
∫ dx/(3-2x)^(1/3)
=(-1/2)∫ d(3-2x)/(3-2x)^(1/3)
=-(3/4)(3-2x)^(2/3) +C
(2)
∫ x.e^(-x^2) dx
=-(1/2)∫e^(-x^2) d(-x^2)
=-(1/2)e^(-x^2) + C
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