Question

Hi

請問如和從上式變到下式🙏🙏

lo
F
-
ate
.2
MAX
1 - x + 2x2 – x3
EXAMPLE 8 Evaluate
dx.
x(x2 + 1)2
50191911
SOLUTION The form of the partial fraction decomposition is
1 - x + 2x2 – x3
x(x2 + 1)2
+
A Bx + c
+
X
x² + 1
w
Dx + E
(x2 + 1)2