(25-2i1/3)do kwadratu -(-1/3)do sześcianu : 2/3
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ze wzoru skróconego mnozenia
(625 -116i2/3 + 5i4/9) - (-1/27) : 2/3 = 514 i 7/9 + 1/27 =514 i 22/27
...=(24 3/3 - 2 1/3)² - (-1/27) * 3/2 =
= ( 22 2/3)² + 1/18 =
= (68/3)² + 1/18 =
= 4624/9 + 1/18 =
= 9248/18 + 1/18 =
= 9249/18 =
= 513 15/18
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ze wzoru skróconego mnozenia
(625 -116i2/3 + 5i4/9) - (-1/27) : 2/3 = 514 i 7/9 + 1/27 =514 i 22/27
...=(24 3/3 - 2 1/3)² - (-1/27) * 3/2 =
= ( 22 2/3)² + 1/18 =
= (68/3)² + 1/18 =
= 4624/9 + 1/18 =
= 9248/18 + 1/18 =
= 9249/18 =
= 513 15/18