Question

a = [(300 : 50 + 148 : 2) : 40 ⋅ 9] : (5 + 3 ⋅ 2 + 21 : 3) și
b = 10a
Sa se afle: 2a + b.
RAPID VA ROG!!!
RAPID!!!

Answer 1

a = [(300 : 50 + 148 : 2) : 40 ⋅ 9] : (5 + 3 ⋅ 2 + 21 : 3)

=[(6+74):40×9] :(5+6+7)

=(80:40×9):18

=(2×9):18==>a=18:18==>a=1

b=10×a==>b=10×1==>b=10

2×1+10=2+10=12