2.4k views
0 votes
What is the partial fraction decomposition of 11x -38^ (2 x - 5) (x - 4) ?

a) 2x-5 + x4/7
b) 2x-57 + x4 /2
c)2x - 52 + x4/7
d)2x - 57 + x4 /2

User Vaettchen
by
7.8k points

1 Answer

2 votes

Final answer:

The partial fraction decomposition of the given rational function is done by expressing it as a sum of simpler fractions whose denominators are factors of the original denominator. The values in the decomposed form are found by equating numerators after finding a common denominator and solving for the unknown constants.

Step-by-step explanation:

The partial fraction decomposition of \( \frac{11x - 38}{(2x - 5)(x - 4)} \) involves breaking down the given rational expression into a sum of simpler fractions, where the denominators are factors of the original denominator. To find the correct partial fraction decomposition, one would typically write:

\( \frac{11x - 38}{(2x - 5)(x - 4)} = \frac{A}{2x - 5} + \frac{B}{x - 4} \)

Then, by finding a common denominator and equating the numerators, the values of A and B can be solved for. This involves equating coefficients for corresponding powers of x and solving the resulting system of equations. The correct decomposition would be a sum of fractions such that when combined, they give the original rational expression.

User Koras
by
7.8k points