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LeleSilva12
@LeleSilva12
December 2019
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Como se faz essa conta!?
Por favor me ajudem!!!
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LluizSouza
Resolvendo de dentro pra fora normalmente...
2*(-3/4)² = -1,125
-5 * (-3/4) = -3/4 = -0,75 ----- -5*(-0,75)=3,75
-1,125-(3,75) = -4,875
-9/8=-1,125
-4,875-1,125=-6
6^-1=0,16667
agora a 2 parte:
2/3*(5^-1)=0,66*0,2=0,132
logo 0,16667/0,132=1,26262626...
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GugaFelix12
[ 2 x ( - 3/4 )² -5 x (-3/4) -9/8]¹ ÷ [2/3 x (5-1)]
[2 x 6/8 - 5 x (-3/4) -9/8]-¹
÷ [2/3 x -5)
[2 x 6/8 -15-20 -9/8]-¹
÷ [2/3 x -5]
[ -2 x -6/8 + 15/20 + 9/8 ]
÷ [ 2/3 x -5]
[ -12/16 + 15/20 + 9/8 ]
÷ [ -10/15 ]
-2160/1920
÷ -10/15
= 216/128
2160 10 216
-------- ÷------- = --------
1920 15 128
Espero ter ajudado ;-)
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Thanks 0
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Lista de comentários
2*(-3/4)² = -1,125
-5 * (-3/4) = -3/4 = -0,75 ----- -5*(-0,75)=3,75
-1,125-(3,75) = -4,875
-9/8=-1,125
-4,875-1,125=-6
6^-1=0,16667
agora a 2 parte:
2/3*(5^-1)=0,66*0,2=0,132
logo 0,16667/0,132=1,26262626...
[2 x 6/8 - 5 x (-3/4) -9/8]-¹ ÷ [2/3 x -5)
[2 x 6/8 -15-20 -9/8]-¹ ÷ [2/3 x -5]
[ -2 x -6/8 + 15/20 + 9/8 ] ÷ [ 2/3 x -5]
[ -12/16 + 15/20 + 9/8 ] ÷ [ -10/15 ]
-2160/1920 ÷ -10/15
= 216/128
2160 10 216
-------- ÷------- = --------
1920 15 128
Espero ter ajudado ;-)