Let's say I have this made-up algebra problem:
If A does not equal 0 and -(A^2-3)/A=1/B, what is B?
and then you have different expressions as the answers, would choosing a number for A to get to B, always work when testing the answer choices?
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- yo4561
- Course Students
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- Whit Garner
- ManhattanGMAT Staff
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Re: Choosing numbers for algebra equations?
Hiya!
Great question! I believe that what you're seeing would almost always be a great example of when to test out numbers. That said, I always hesitate to say *always* because every so often the test writers with throw a crazy exception at you. But I think your intuition is great!
Great question! I believe that what you're seeing would almost always be a great example of when to test out numbers. That said, I always hesitate to say *always* because every so often the test writers with throw a crazy exception at you. But I think your intuition is great!
"A life spent making mistakes is not only more honorable, but more useful than a life spent doing nothing." - George Bernard Shaw
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