`int(2x+1)/(2x^(2)+2x+5)dx`

int(x-1)/(x^(2)-2x-5)dx

int(x+2)/(2x^(2)+6x+5)*dx

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

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

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

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

int (2x+1)/(x^2+4x-5) dx

int(2x+5)/(x^(2)+5x+7)dx

int _-1^1(1)/(x^(2)+2x+5)dx

If int(x+2)/(2x^(2)+6x+5)dx =P int(4x+6)/(2x^(2)+6x+5)dx+(1)/(2) int (dx)/(2x^(2)+6x+5') Then the value of P is