`int(x^4+2x^2+7)/(x^2+1)dx`

int(x^2+1)/(x^4+x^2+1)dx

int((x^2+1))/(x^4+7x^2+1)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^(4) + x^(2) +1)/(x^(2) + 1) dx =

int(x^2+2x+7)sqrt(x+1)dx

int(4x+1)/(2x^(2)+x+1)dx

int(x)/(2x^4-2x^2-1)dx=

int(2x-7)/(sqrt(4x-1))*dx

int (x+4)/(6x-7-x^(2))dx=

Evaluate int(2x)/(x^(4)+x^(2)+1)dx