MathDB
the coefficients of a partial fraction decomposition

Source:

November 16, 2009
algebrapolynomialfunction

Problem Statement

If a a, b b, c c, d d, and e e are constants such that every x>0 x > 0 satisfies \frac{5x^4 \minus{} 8x^3 \plus{} 2x^2 \plus{} 4x \plus{} 7}{(x \plus{} 2)^4} \equal{} a \plus{} \frac{b}{x \plus{} 2} \plus{} \frac{c}{(x \plus{} 2)^2} \plus{} \frac{d}{(x \plus{} 2)^3} \plus{} \frac{e}{(x \plus{} 2)^4} \, , then what is the value of a \plus{} b \plus{} c \plus{} d \plus{} e?