Question

resolva as equacâes exponenciais.
2²x=128

Answer 1

   2x
2      =   128
   2x          7
2       =  2

2x = 7
x = 7/2
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128: 2
64: 2
32: 2
16: 2
8: 2
4: 2
2: 2                               7
1     =   2.2.2.2.2.2.2 = 2