I'm getting stuck on these, so if someone can please help, I'd really appreciate it.

Use partial fractions to evaluate the integral.

1. ∫(3xsquared - 2x + 12) / (xsquared + 4) squared

2. ∫ (2r) / (rsquared - 2r + 2)

3.∫ (theta) / (theta + 1)

Thanks!