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It's half-past the square root of 64

Pop Quiz, hotshot. Think back to a time when you were a young geek. Sure, you were brilliant at math, but being asked to solve problems on the chalkboard... That's the stuff of nightmares. Thankfully, that time is over... Or is it? The smell of chalk, and the feel of the blackboard is still fresh in your mind. If you close your eyes, you can almost feel the eyes staring at your back as you labor to engage your brain and simplify the polynomial.