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KevilyReal
@KevilyReal
August 2019
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1)Resolva a expressão:
a)(13-1)²:[√64:2³+(81:3²-8).3]+6²
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exalunosp
( 13 - 1)² : [ V64 : 2³ + ( 81 : 3² - 8 ) .3] + 6²
TIRANDO EXPOENTES
( 12)² : [ V64 : 8 + ( 81 : 9 - 8) . 3 ] + 36 =
V64 =V(2² * 2² * 2² ) = 2 * 2 * 2 = 8 ***
12² = 12 * 12 = 144
reescrevendo
144 : [ 8 : 8 + ( 81 : 9 - 8 ) . 3 ] + 36 =
fazendo as divisoes
144 : [ 1 + ( 9 - 8 ) . 3 ] + 36 =
parenteses
144 : [ 1 + 1 . 3 ] + 36 =
multiplicando
144 : [ 1 + 3 ] + 36 =
144 : 4 + 36 =
divisão
36 + 36 = 72 ***** resposta ***
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TIRANDO EXPOENTES
( 12)² : [ V64 : 8 + ( 81 : 9 - 8) . 3 ] + 36 =
V64 =V(2² * 2² * 2² ) = 2 * 2 * 2 = 8 ***
12² = 12 * 12 = 144
reescrevendo
144 : [ 8 : 8 + ( 81 : 9 - 8 ) . 3 ] + 36 =
fazendo as divisoes
144 : [ 1 + ( 9 - 8 ) . 3 ] + 36 =
parenteses
144 : [ 1 + 1 . 3 ] + 36 =
multiplicando
144 : [ 1 + 3 ] + 36 =
144 : 4 + 36 =
divisão
36 + 36 = 72 ***** resposta ***