10. Simplify. Write answer using positive exponents. 2x'y 5 x'y -32 7. -1 25 O A. O B. OC. 25xy 25 B. 8x y O D. 200x'y 11. Subtract 2x² – 9 from 5x² + x + 9. Simplify A. -3x2- x О в. -3x2 - х -18 O C. 3x2 + x O D. 3x² + x + 18

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