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If a = 1 and b = -2, then (2a^2 + b)(x + y) + (a + b)(x - y) = [#permalink]
It's easy to make a mistake in this question if everything is bunched up together. The easiest way to get this question wrong is simply by failing to give yourself PLENTY OF ROOM TO WRITE!

Here's an explanation on YouTube:

https://www.youtube.com/watch?v=-FceaQC ... XrpA6VrNLk
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Re: If a = 1 and b = -2, then (2a^2 + b)(x + y) + (a + b)(x - y) = [#permalink]
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: If a = 1 and b = -2, then (2a^2 + b)(x + y) + (a + b)(x - y) = [#permalink]
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