To find:

Formula Used:

1.

2.

Given equation can be rewritten as following:

Let I … (2)

Using partial fractions,

6x – 3 = A (2x + 6) + B

Equating the coefficients of x,

6 = 2A

A = 3

Also, -3 = 6A + B

⇒ B = -21

Substituting in (1),

I

Therefore,