Question

MĂ PUTEȚI AJUTA !
VĂ ROG!

Calculați :
a) [(10 la puterea 3:5 la 2:8+3la 2•5 la 2):3 la0]•2 la 2la 0
b){[(12 la 2+5la 2):13]la 2-2la 7-2 la 0}:2 la 3

APROPO ,,la " inseamna ,,la puterea"

Answer 1

a) [(10³:5²:8+3²•5²):3⁰]•2² la ⁰=
=[(10³:5²:2³+3²•5²):1]•2¹=
=[(10³:10²:2+3²•5²):1]•2¹=
=(5+225)•2=
=230•2=460

b){[(12²+5²):13]²-2⁷-2⁰}:2³=
={[(144+25):13]²-2⁷-1}:2³=
=[(169:13)²-2⁷-1]:2³=
=(169-128-1):2³=
=40:8=
=5