SOLUTION: how do i solve log(x)81=-4
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Question 533186: how do i solve log(x)81=-4
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
how do i solve log(x)81=-4
Write the exponent form of logs
x^-4 = 81
get rid of the neg by using the reciprocal of 81
x^4 =
x = the 4th root of
x =
;
:
Check on calc 3^4 = 81
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