<PRE><B>Question 487160</B>
(6x)^4 when x=2
the four is to the fourth power.
:
Both 6 and x have to raised to the 4th power
:
You can replace x with 2
(6*2)^4 = 12^4 
:
or you can write it
6^4 * x^4 = 1296x^4
:
Replace x with 2
 1296*2^4 = 1296*16
:

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