Here is one that is worked exactly the same way. Use it as
a model for yours:
= 64
Note that is 4-1 and that 64 = 43
(4-1)2x = 43
Remove the parentheses on the left by multiplying exponents
4-2x = 43
Since the base 4 is the same on both sides, and it is positive and not 1,
the exponents will be equal too, so we can write
-2x = 3
and then divide both sides by -2 and get
x =
Edwin
