Question

Calculati :
a) (2 la 3 ) totul la 10 : 2 la 27 - 3 × (5 la 2 - 3 la 2) totul la 2 = ?
b) 2 × [ 9 la 2 - 5 la 0 ( 1 + 2 × 3 la 2 )] totul la 2
c) 5 la 0 + [( 7 la 2 ) totul la 4 × 7 la 7] : 2 la 3 = ?
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Va rog !! e urgent, Dau coroana !!

Answer 1

a)  =2^30:2^27-3*(25-9)^2=
      2^3-3*16^2=8-3*256=8-768=-760
b)=2*[81-1*(1+2*8)]^2=
    2*[81-1*17]^2=
   2*[64]^2=2*4096=8192
c)=1+[7^8:7^7]:8=1+7^15:8