Question

[9la puterea 2 -2 la puterea 4 inmultit 5 la puterea 9 : (5 la puterea 4) totul la puterea 2] : 2 la puterea 2

Answer 1

[9^2-2^4×5^9÷(5^4)^2]÷2^2
(81-16 × 5^9÷5^8)÷4
(81-16×5)÷4
(81-80)÷4
1÷4
0,25

Answer 2

$[9^{2}- 2^{4} * 5^{9} :( 5^{4}) ^{2} ]: 2^{2}$=
=$[81-16* 5^{9} : 5^{8} ]:4$=
=$[81-16*5]:4$=
=$[81-80]:4$=
=$1:4$=
=$0,25$.