a.Integral x (3+2/x) (3+2/x) = integral x (9+12/x + 4/x²) dx = integral (4x^-1 + 9x + 12)dx =
4/(-1+1)x^(-1+1) + 9/(1+1)x^(1+1) + 12/(0+1)x^(0+1) + C =
(9/2)x² + 12x +/C
b. Integral (2/(e^-1+1)) dx =
- 2 In (e + 1) = -1 - 2 In (e+1)
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a.Integral x (3+2/x) (3+2/x) = integral x (9+12/x + 4/x²) dx = integral (4x^-1 + 9x + 12)dx =
4/(-1+1)x^(-1+1) + 9/(1+1)x^(1+1) + 12/(0+1)x^(0+1) + C =
(9/2)x² + 12x +/C
b. Integral (2/(e^-1+1)) dx =
- 2 In (e + 1) = -1 - 2 In (e+1)