Consider the indefinite integral \(\int \frac{4x^3 + 9x^2 + 8x + 24}{x^4 + 4x^2} dx\). The integrand has partial fractions decomposition \(\frac{a}{x^2} + \frac{b}{x} + \frac{cx + d}{x^2 + 4}\) where a = b = c = d = Integrating term by term, and using K for the constant of integration, we obtain that \(\int \frac{4x^3 + 9x^2 + 8x + 24}{x^4 + 4x^2} dx = \)
Added by Kathy H.
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To find the partial fractions decomposition of the integrand, we need to factor the denominator x^2 + 4. Since x^2 + 4 is irreducible, we can write the decomposition as: 4x^3 + 92 + 8x + 24 = (cx + d) / (x^2 + 4) Show more…
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