markisicsanel55 markisicsanel55

02-04-2020
Mathematics

contestada

Determine the solution to the exponential equation 8^x +1 = 2^x - 5. Explain how
you know that the value you obtain is the solution to the equation.

Respuesta :

ghanami ghanami

02-04-2020

Answer:

x=-4

Step-by-step explanation:

hello :

8=2^3 so : 8^x=(2^3)^(x+1) = 2^(3x+3)

8^(x +1) = 2^(x - 5) means : 2^(3x+3) = 2^(x - 5)

3x+3 = x -5

2x = -8

x=-4

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