SOLUTION: Solve log4(8)
the 4 is under log like log to the x.. the choices are..
a. 2
b.-2
c.3/2
d.3
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Question 191661: Solve log4(8)
the 4 is under log like log to the x.. the choices are..
a. 2
b.-2
c.3/2
d.3
Found 2 solutions by Mathtut, jim_thompson5910:
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
c)3/2......or 1.5
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given expression
Set the given expression equal to some variable (I chose "y")
Rewrite the logarithmic equation into exponential form
Rewrite 4 as and 8 as
Multiply the exponents.
Since the bases are equal, this means that the exponents are equal.
Divide both sides by 2 to isolate "y"
So the solution is which means that (since we let )
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