Factorize: 3xy - x 4a (to the power of 2) -9 (x-y) to the power of 2 - x+y
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The experimental data suggest that
Because the marble is replaced after being drawn, and so the number of marbles of a given color remains the same, the event of drawing any given color is independent of what was drawn before. So
Because the marble is replaced after being drawn, and so the number of marbles of a given color remains the same, the event of drawing any given color is independent of what was drawn before. So