Question

I need help with this question I got 1 as an answer but it’s saying it’s wrong

log 4 (x³ +255) = 4

Answer 1

see image

Explanation:

I did two different problems depending on whether the 4 beside the log is a base or not.

If the log IS the base, I got x = 1 as you did. But if the 4 is not the base then there is no base written and that means the base is 10.

For log problems that have log on one side of the equation only, then a good strategy is to change the equation from logarithmic form to exponential form. See image for work. Hope this helps.