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How can I move on from my ex?

The first and foremost thing you can do is, to understand that this person wasn't for you. If the re...

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Why is (n-1)(n+1)=n^2-1?

The basic answer is that you cross-multiply the values in each factor: (n - 1)(n + 1) n^2 - n + n -...

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Why is Tiananmen Square censored?

Though I am no ally of Deng Xiaoping, I recognize the imperative to know the truth and context of th...