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{-10-[-5-(-8+3)-11-(+7)]•(-8)}•[(-30•(+8)-12]

Răspuns :

{-10-[-18]•(-8)}•[-240-12] = {-10-144}•(-252) = (-154)•(-252) = 38808
{-10-[-5-(-8+3)-11-(+7)]•(-8)}•[(-30•(+8)-12] =
= [-10-(-5+5-11-7)×(-8)]×(-240-12)=
= [-10-(-18)×(-8)]×(-252)=
= (-10-144)×(-252)=
= -154×(-252)=
= 38 808