The given integral is
∫x3x2+4x+4dx. \int \frac{x^{3}}{x^{2}+4 x+4} d x. ∫x2+4x+4x3dx.
First, we factor the quadratic denominator:
x2+4x+4=(x+2)2. x^{2} + 4x + 4 = (x + 2)^{2}. x2+4x+4=(x+2)2.
Now, we can rewrite the integral using the factored form of the denominator:
∫x3(x+2)2dx. \int \frac{x^{3}}{(x + 2)^{2}} d x. ∫(x+2)2x3dx.
The result of the integration is:
x22−4x+12log(x+2)+8x+2+C, \frac{x^{2}}{2} - 4x + 12 \log(x + 2) + \frac{8}{x + 2} + C, 2x2−4x+12log(x+2)+x+28+C,
where C C C is the constant of integration.
Thus, the final result of the integral is
x22−4x+12log(x+2)+8x+2+C. \boxed{\frac{x^{2}}{2} - 4x + 12 \log(x + 2) + \frac{8}{x + 2} + C}. 2x2−4x+12log(x+2)+x+28+C.
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