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a fost răspuns

Calculati:
a) 144:(-12)+7 x (-2) la puterea a 3 +2 010 =
b) (-88) : (-4) - 125 : (-5) la puterea a 2 - 380 =
c) {6 - [282 x (-1) - (44 : 11 - 18) ] } - 644 =
d) 25 la puterea a 2 : (-5) la puterea a 2 { 42 + 3 x [6 - (3 la puterea a 3 x 5 + 11)] } =

Răspuns :

Carmenelenasta
a) -12-7×2^3+2010= -12-7×8+2010= -12-56+2010= -68+2010=1942
b) 22-125:5^2-380=22-5-380= -363
c) {6-[282×(-1)-(4-18)]}-644=
{6-[-282-(-14)]}-644=
[6-(-282+14)]-644=
[6-(-268)]-644=
(6+268)-644=274-644= -370

d) (5^2)^2:(-5)^2 {42+3×[6-(27×5+11)]}=
5^4:5^2 {42+3×[6-(135+11)]}=
5^2 [42+3×(6-146)]=
25 [42+3×(-140)]=
25 (42-420)=25×(-378)= -9450

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