8-xx2+4x+8dx -x-8x2+4x+8dx x-8x2+4x+8dx 2x+42x2+4x+8-10x2+4x+8dx x+22x2+4x+8dx-101x2+4x+8dx x+22x2+4x+8dx

8-xx2+4x+8dx
-x-8x2+4x+8dx
x-8x2+4x+8dx
2x+42x2+4x+8-10x2+4x+8dx
x+22x2+4x+8dx-101x2+4x+8dx
x+22x2+4x+8dx (Решение → 804)

8-xx2+4x+8dx -x-8x2+4x+8dx x-8x2+4x+8dx 2x+42x2+4x+8-10x2+4x+8dx x+22x2+4x+8dx-101x2+4x+8dx x+22x2+4x+8dx



8-xx2+4x+8dx
-x-8x2+4x+8dx
x-8x2+4x+8dx
2x+42x2+4x+8-10x2+4x+8dx
x+22x2+4x+8dx-101x2+4x+8dx
x+22x2+4x+8dx (Решение → 804)

U=x2+4x+8=>dudx=2x+4=>dx=12x+4du 12udu=121udu=12*2u+C=>u=>x2+4x+8 1x2+4x+8dx 1x+22+4dx u=x+22=>dudx=12=>dx=2du 24u2+4du 1u2+1du=>lnu2+1+u lnx+222+1+x+22 x+22x2+4x+8dx-101x2+4x+8dx=x2+4x+8-10*lnx+222+1+x+22+C Ответ: x2+4x+8-10*lnx+222+1+x+22+C