Respuesta :
Answer:
x = 8
Step-by-step explanation:
The given equation is
[tex] {4}^{ log_{4}(x + 8) } = {4}^{2} [/tex]
Recall that:
[tex] {p}^{ log_{p}(x) } = x[/tex]
Apply this property of logarithms to get:
[tex](x + 8) = {4}^{2} [/tex]
Simplify on the right,
[tex]x + 8 = 16[/tex]
Subtract 8 from both sides,
[tex]x = 16 - 8 = 8[/tex]
These are inverse of exponential functions. The solution to the given function is 8
Logarithmic functions
These are inverse of exponential functions. Given the logarithmic expressions as shown:
[tex]4^{log_4(x+8)}=4^2[/tex]
Cancel the base to have:
[tex]log_4(x+8)=2[/tex]
Apply the law of logarithm to have;
[tex]x+8=4^2\\x+8=16[/tex]
subtract 8 from both sides
[tex]x = 16 - 8\\x = 8[/tex]
Hence the solution to the given function is 8
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