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log base 2 (x+4) + log base 2 (x+3) =1 I got solutions x=-5 and x=-2,...

log base 2 (x+4) + log base 2 (x+3) =1

I got solutions x=-5 and x=-2, but are both valid solutions or just one? I checked work on an app and found the solution to be x=-2, but i do not know how to check myself without using a calculator.


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