Question

Ma puteti ajuta cu rezolvarea exercitiului acesta ? {-3+2(7-11)-28[-8+4(-9+5)]}

Answer 1

{-3+2(7-11)-28[-8+4(-9+5)]}=={-3+2*(-4)-28[-8+4*(-4)]}=[-3-8-28(-8-16)]=(-3-8-28*(-24)]=(-3-8+672)=-11+672=661

Answer 2

{-3+2(7-11)-28[-8+4(-9+5)]}=

={-3+2×(-4)-28[-8+4×(-4)]}

={-3-8-28[-8+4×(-4)]}

=[(-11)-28(-8-16)]

=[(-11)-28(-24)]

=- 11+672

=661

deci
{-3+2(7-11)-28[-8+4(-9+5)]}=661