Resolva essas questões exponenciais. Valendo 15 Pontos a)5x².5^4=5^5x
b)7^2x-1=7^x.7^3
c)9^2x=27^x-4
d)2^x +2^x+3 -2^x-1=34
Me ajudem PFVR
b)7^2x-1=7^x.7^3
c)9^2x=27^x-4
d)2^x +2^x+3 -2^x-1=34
Me ajudem PFVR
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