Преобразуйте в многочен выражение: -(х+2)^2-(х-3)*(х+4)
-(х²+4х+4)-(х²+х-12)=-х²-4х-4-х²-х+12=-2х²-5х+8
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-(х²+4х+4)-(х²+х-12)=-х²-4х-4-х²-х+12=-2х²-5х+8