SOLUTION: solve for x:log3(x^2-4)-log3(x+2)=2
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Question 421809
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solve for x:log3(x^2-4)-log3(x+2)=2
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lwsshak3(11628)
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solve for x:log3(x^2-4)-log3(x+2)=2
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log3(x^2-4)-log3(x+2)=2
=log3(x^2-4)/(x+2)=2
change to exponential form,
3^2=(x^2-4)/(x+2)
=(x+2)(x-2)/x+2)=9
x-2=9
x=11