Given

Integral is of form

Writing numerator as

⇒ px + q = λ(2ax + b) + μ

⇒ x = λ (-2x + 1) + μ

∴ λ = -1/2 and μ = -1/2

Let x = -1/2(-2x + 1) – 1/2 and split,

Consider

Let

We know that

Consider

Let

We know that

Then,