(2×⅚)²-(3²-√1⁷/₉)
(2×⅚)²-(3²-√1⁷/₉)=(⁵/₃)²-(9-√¹⁶/₉)=²⁵/₉-(9-⁴/₃)=²⁵/₉+¹²/₉-9=³⁷/₉-9=4¹/₉-9=-4 ⁸/₉
pozdrawiam
(2×⅚)²-(3²-√1⁷/₉)=
= (5/3)² - [ 9 - √(16/9) ] =
= 25/9 - [ 9 - 4/3] =
= 25/9 - [ 27/3 -4/3] =
= 25/9 - 23/3 =
= 25/9 - 69/9 =
= - 44/9
Poprawiono końcowy wynik ma być - 44/9
(2 x 5/6)^2 -(3^2 -V1 7/9) =
=(10/6)^2 -(9-V16/9) =
=(5/3)^2 -(9 - 4/3)=
=25/9 -(81/9 -12/9) =
=25/9 -69/9 =
= -44/9 = -4 8/9
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(2×⅚)²-(3²-√1⁷/₉)=(⁵/₃)²-(9-√¹⁶/₉)=²⁵/₉-(9-⁴/₃)=²⁵/₉+¹²/₉-9=³⁷/₉-9=4¹/₉-9=-4 ⁸/₉
pozdrawiam
(2×⅚)²-(3²-√1⁷/₉)=
= (5/3)² - [ 9 - √(16/9) ] =
= 25/9 - [ 9 - 4/3] =
= 25/9 - [ 27/3 -4/3] =
= 25/9 - 23/3 =
= 25/9 - 69/9 =
= - 44/9
Poprawiono końcowy wynik ma być - 44/9
(2 x 5/6)^2 -(3^2 -V1 7/9) =
=(10/6)^2 -(9-V16/9) =
=(5/3)^2 -(9 - 4/3)=
=25/9 -(81/9 -12/9) =
=25/9 -69/9 =
= -44/9 = -4 8/9