Question 688042

Solve for X

4^3x+5 = 1/256

The answer I get is -3 please correct me if I am wrong and why if you can please.


{{{4^(3x + 5) = 1/256}}}


{{{4^(3x + 5) = 4^-4}}}


3x + 5 = - 4


3x = - 4 - 5


3x = - 9


{{{x = (- 9)/3}}}, or {{{highlight_green(- 3)}}}


You're correct!!! To determine if your answer's correct, just do the check!! I assume you know how to do that!!


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