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Yu003d 2x^2+8x 5 u5e73u65b9u5b8cu6210
Yu003d 2x^2+8x 5 u5e73u65b9u5b8cu6210 pictures 5
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Yu003d 2x^2+8x 5 u5E73u65B9u5B8Cu6210
Yu003d 2x^2+8x 5 u5E73u65B9u5B8Cu6210
