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bellabrocardo
@bellabrocardo
July 2022
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Achar o valor de x : (4^x ) + 4 = 5.2^x
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Minska
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kjmaneiro
Verified answer
4^x + 4 = 5.2^x
4 = 2^2 então... 4^x = 2^2x
2^2x + 4 = 5.2^x ... Passa o 2^x dividindo e passa o +4 para a esquerda
2^2x/2^x = 5 - 4
2^x = 1 ... 1 = 2^0
Logo 2^x = 2^0 ...
X = 0
Espero ter ajudado... abraço!
1 votes
Thanks 1
kjmaneiro
Ótimo!
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Verified answer
4^x + 4 = 5.2^x4 = 2^2 então... 4^x = 2^2x
2^2x + 4 = 5.2^x ... Passa o 2^x dividindo e passa o +4 para a esquerda
2^2x/2^x = 5 - 4
2^x = 1 ... 1 = 2^0
Logo 2^x = 2^0 ... X = 0
Espero ter ajudado... abraço!