hsan9235 hsan9235
  • 15-10-2021
  • Mathematics
contestada

1/128 = 2^(5x+3)


anybody know what x is

Respuesta :

manissaha129
manissaha129 manissaha129
  • 15-10-2021

Answer:

[tex] {2}^{(5x + 3)} = \frac{1}{128} \\ {2}^{(5x + 3)} = \frac{1}{ {2}^{7} } \\ {2}^{(5x + 3)} = {2}^{ (- 7)} \\ 5x + 3 = - 7 \\ 5x = - 7 - 3 \\ 5x = - 10 \\ x = \frac{ - 10}{5} \\ \boxed{x = - 2}[/tex]

  • x = -2 is the right answer.
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