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

int(dx)/((1-6x-9x^(2)))

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

int(1)/(6+5x-6x^(2))dx

int(dx)/(sqrt(6-x-x^(2)))

int(6x+5)sqrt(6+x-2x^(2))dx

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

int(x^(6))/(x^(2)+1)dx

int(x+3)/(sqrt(7-6x-x^(2)))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