`int(x^2+2x+12)/((2x+1)) dx`

int(2x^2+3)sqrt(x+2)\ dx (ii) int(x^2+3x+1)/((x+1)^2)\ dx

int (x ^ (2)) / (2x + 1) dx

int (2x^2+1)/((x+1)(x-2)) dx

(i) int((x^(2) - 1)/(x^(2) + 1))dx , (ii) int ((x^(6)- 1)/(x^(2) + 1))dx (iii) int ((x^(4))/(1+x^(2)))dx , (iv) int((x^(2))/(1+x^(2)))dx

int(x^(2))/(x^(2)+6x+12)dx

int(x^(2))/(x^(2)+6x-12)dx

int(x^2)/(x^2+6x-12)dx

int(2x^(2)+3)sqrt(x+2)dx( ii) int(x^(2)+3x+1)/((x+1)^(2))dx