5m Zen
Yu003d2x^2 6x+4 yu003d 3x^2+9x 6
Yu003d2x^2 6x+4 yu003d 3x^2+9x 6 pictures 5
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Yu003d2x^2 6x+4 yu003d 3x^2+9x 6
Yu003d2x^2 6x+4 yu003d 3x^2+9x 6
