Question

{(1-2/5)².(1=1/5)]:[-1=(-1/2-1/4=1)²]

ALGUÉM PODE ME AJUDAR PF!!!!!

Answer 1

{ [ ( 1 - 2 / 5 )² * ( 1 + 1 / 5 ) ] : [ - 1 + ( - 1 / 2 - 1/ 4 + 1 )² ] }

{ [ ( 3 / 5 )² * (6 / 5 ) ] : [ - 1 + ( - 2 - 1 + 4 / 4 )² ] }

{ [ 9 / 25 * 6 / 5 ] : [ - 1 + ( 1 / 4 )² ] }

{ [ 54 / 125 ] : [ - 1 +  1 / 16 ] }

{ [ 54 / 125 ] : [ - 15 / 16 ] }

54 / 125 * ( - 16 / 15 )

- 864 / 1875 = - 288 / 625

Answer 2

{ [ (1 - 2/5)^2 . (1 + 1/5) ] : [ - 1 + (- 1/2 - 1/4 + 1)^2 ] }

{ [ (5/5 - 2/5)^2 . (5/5 + 1/5) ] : [ - 1 + (- 2/4 - 1/4 + 4/4)^2 ] }

{ [ 3/5^2 . 6/5 ] : [ - 1 + 1/4^2 ] }

{ [ 9/25 . 6/5 ] : [ - 1 + 1/16 ] }

{ 54/125 : - 15/16 }

{ 54/125 . - 16/15 }
864/1875 (÷ 3)

=> - 288/625