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Meg kommenterede 27. maj 2017 13:30
Very helpful, thank you. Confirms that the error was indeed not mine, much to my surprise. Usually I am the one making the error, but in this case, my calculations matched that of the hints, and th...
Meg oprettede et opslag 27. maj 2017 01:25
Aren't both 5 and -5 the square roots of 25?
Besvaret

I was doing a problem that resulted in two possible values for the variable: -1 and 3. When I plugged each of those into the form y^2-2y-3=0, I got two true statements (9-9=0, and 3-3=0) so I looke...
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