9. Perform the indicated operations. (4x³ + 12x+6) - (5x³+4x² − 3) 4x² + 12x +9 O-x³ + 16x² +9 -x³+4x² + 12x + 3 O-r³-4x² + 12x + 3 Question 10 10. Factor the polynomial completely. (8x - y)² (8x + y)² (8x - y) (8x + y) (8x - y) (x + y) 64x² - y²

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