AvleenB101999 AvleenB101999
  • 26-10-2022
  • Mathematics
contestada

Solve 8 = 2^(x + 4), (x+4 is exponent)

Respuesta :

SamaiyaT658417 SamaiyaT658417
  • 26-10-2022

x=-1

Explanation

[tex]8=2^{\left(x+4\right)}[/tex]

Step 1

a)write 8 as the third power of 2, so

[tex]\begin{gathered} 8=2^{\left(x+4\right)} \\ 8=2^3,so \\ 2^3=2^{\left(x+4\right)} \end{gathered}[/tex]

b)the base is the same,so the expontes are equal

[tex]\begin{gathered} 2^{3}=2^{(x+4)} \\ 3=x+4 \end{gathered}[/tex]

c) finally, to isolate x subtract 4 in both sides

[tex]\begin{gathered} 3=x+4 \\ 3-4=x+4-4 \\ -1=x \end{gathered}[/tex]

therefore, the answer is

x=-1

I hope this helps you

Answer Link

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