4(4-у²)(у²-4)-(5-у³)²+(у⁴+4у²+16)(у²-4)=-4(у²-4)(у²-4)-(5-у³)²+(у²+4)²(у²-4)==-4(у²-4)²-(5-у³)²+(у²+4)(у²-4)(у²+4)=-4(у⁴-8у²+16)-(25-10у³+у⁶)+(у⁴-16)(у²+4)==-4у⁴+32у²-64-25+10у³-у⁶+у⁶-16у²+4у⁴-64==-у⁶+у⁶-4у⁴+4у⁴+10у³+32у²-16у²-64-25-64==10у³+16у²-153(х-1)(х-2)(х+3)-(х+1)(х+2)(х-3)==(х²-х-2х+2)(х+3)-(х²+х+2х+2)(х-3)==(х²-3х+2)(х+3)-(х²+3х+2)(х-3)==х³-3х²+2х+3х²-6х+6-х³-3х²-2х+3х²+9х+6==х³-х³-3х²+3х²-3х²+3х²+2х-6х-2х+9х+6+6==3х+12