va rog dau coroana!!!!URGENT!!^^^
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Răspuns:
Explicație pas cu pas:
a)
= 10(81-48) =
10 x 33 =
330
b)
=(7^2 - 1) : 2^4 =
(7-1)(7+1): (8x2) =
6;2 =
3
c)
= (15^2 ; 5^2 + 1)^3 : 10^2 =
(5^2 x 3^2 : 5^2 + 1)^3 ; 10^2 =
(3^2 + 1)^3 : 10^2 =
10^3 : 10^2 =
10^1 =
10.