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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 -...

— we are metamorphosing!

臆病羊 科学というフィルムに取り憑かれて 神を忘れ いつの間にか迷宮に迷い込んだ TW: v0mit, blood, s...

Can women learn to squirt?

Thank you for your question! Yes, a women can learn to squirt. There are so many myths in respect to...

Why do flat earthers exist?

I don't pay much attention to flat Earthers, but this short video from SciManDan shows the ultimate...