Question

calcule : 2⁴ + {-9+[(-3+20)-√121}

15.2/3+ 144 : 12 + 3₄


2/3 + 1/4

Answer 1

1) 2^4 +{-9+[(17)-11}
2^4 +{-9 + [17-11}
2^4 + {-9 +6}
2^4 +{-3}
16 -3
13

2) 15.2/3 + 144/12 + 3^4
(15.2/3 + 144/12)/12 + 3^4
( 60.8 + 144)/12 + 81
( 204.8)/12 + 81
17 + 81 = 98

3) 2/3 + 1/4
(2/3 + 1/4)/12
(8 + 3)/12
11/12