Question

Calcule
a)15-6•{[3•(-1-9)]+14}
b)-32+5{15-[5•(-3+8)-7•5]}
c)-20•{18•[(-1)•(4-7)]}

Answer 1

Resposta:

a)=15−6⋅{[3⋅(−10)]+14}=

=15−6⋅{[−30]+14}=

=15−6⋅{−16}=

=15−(−96)=

=111

b)=−32+5⋅{15−[5⋅(5)−35]}=

=−32+5⋅{15−[25−35]}=

=−32+5⋅{15−[−10]}=

=−32+5⋅{25}=

=−32+125=

=93

c)=−20⋅{18⋅[(−1)⋅(−3)]}=

=−20⋅{18⋅[3]}=

=−20⋅{54}=

=−1080

espero ter ajudado