Enter (A,B,C) in order below if A, B, and C are the coefficients of the partial fractions expansion of (2x^2 + 3x - 5)/(x(x^2 - 1)) = A/x + B/(x - 1) + C/(x + 1).
+506 \(\frac{2x^2 + 3x - 5}{x(x^2 - 1)} = \frac{A}{x} + \frac{B}{x - 1} + \frac{C}{x + 1}\)
multiply both sides by \(x(x^2-1)\):
\(2x^2+3x-5=A(x-1)(x+1)+B(x)(x+1)+C(x)(x-1)\)
Notice that if you set x to equal 0, 1, and -1, respectively, you can cancel out two of the 3 coefficients, which will make it easier to solve. First, set x = 0:
\(-5=-A\\A=5\)
Now set x = 1:
\(2+3-5=2B\\B=0\)
Lastly, set x = -1:
\(2-3-5=2C\\ -6=2C\\C=-3\)
Therefore, the answer is \(\boxed{(5, 0, -3)}\)
