∫(x^4-2x^-4+3x^5+4/x^5)dx=∫x^4dx-2∫x^-4dx+3∫x^5dx+1/4∫x^-5dx=
=1/5x^5-2·x^-3/(-3)+3·1/6x^6+1/4·x^-4/(-4)=1/5x^5+2/3x^-3+1/2x^6-1/16x^4=
=1/5x^5+2/3x^3+1/2x^6+1/16x^4=1/2x^6+1/5x^5-1/16x^4+2/3x^3
