Complete the square and match a standard integral

Find the following integrals:

(a) $\displaystyle\int \dfrac1{2-9x^2}\,dx$

(b) $\displaystyle\int \dfrac1{6+4y-y^2}\,dy$

(c) $\displaystyle\int \dfrac1{y^2-4y-13}\,dy$

(d) $\displaystyle\int \dfrac1{2y^2-4y-1}\,dy$

(e) $\displaystyle\int \dfrac1{x^2+4x+20}\,dx$

(f) $\displaystyle\int \dfrac1{2x^2+3x+10}\,dx$

(g) $\displaystyle\int \dfrac1{\sqrt{5-4y-y^2}}\,dy$

(h) $\displaystyle\int \dfrac1{\sqrt{25-9x^2}}\,dx$.