MethMath11
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Well, I tried every option and see if it fits the equation, it took me approximately 5 min to get the answer, so I was hoping to get a mathematical way to solve it so if there's something like this in my test soon, I could use a mathematical way rather than a guessing gameWhat "nonmathematical" way have you tried? You may be expecting something unrealistic.
It's perfectly "mathematical" to just think logically, without following a routine "method". Show us your thoughts, and we may tell you you're doing it in the best possible way. (I can think of several approaches that are equally good, so I don't want to just give you a method that may not be natural for you.)
I would almost always advise students to look to comparisons to zero.Well, I tried every option and see if it fits the equation, it took me approximately 5 min to get the answer, so I was hoping to get a mathematical way to solve it so if there's something like this in my test soon, I could use a mathematical way rather than a guessing game .