Consider the indefinite integral r8x³ + 7x² + 45x + 36 dx x4 + 9x2 Then the integrand has partial fractions decomposition а cx + d - x2 + 9 where а - %3D с 3 d = Integrating term by term, we obtain that (8x³ + 7x² + 45x + 36 dx x4 + 9x? +C

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