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(20/ 26 )^3 ÷ (80/13)^3

Răspuns :

Fatyfatymafkp32662
pe 20/26 il simplifici cu 2 si rezulta 10/13
(10/13)^3÷(80/13)^3=10^3÷80^3
(80=8*10)

10^3÷(8×10)^3=8^3
Needhelp112
(20/26)^3 : (80/13)^3 = (10/13)^3 : (8*10/13)^3 = 10^3/13^3 : 8^3*10^3/13^3 = 
= 10^3/13^3 x 13^3/8^3*10^3 = 1 x 1/8^3 = 1/8^3 = 1/(2^3)^3 = 1/2^9 = (1/2)^9

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