SOLUTION: solve 9x powerof 2=4

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Question 173705: solve 9x powerof 2=4
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
9x%5E2-4=0we have difference of squares
:
%283x%2B2%29%283x-2%29=0
:
3x+2=0--->3x=-2--->x=-2/3
:
3x-2=0--->3x=2---->x=2/3
:
system%28x=-2%2F3%2Cx=2%2F3%29