9. - 8m²n²+ 7 m²n² - 15m²n² 10. -b²c³ + (-b²c³] - [-b²c³) 11. 15m²n³- 12m²n + 8m²n 12. a²b4 + 2a2b4 - 9a2b4 13.-18xyz + (-5xyz) - (-12xyz) 14. 11ab - 6ab - 15ab 15. −21x² + 17x4 - 12x4

Question

9. - 8m²n²+ 7 m²n² - 15m²n² 10. -b²c³ + (-b²c³] - [-b²c³) 11. 15m²n³- 12m²n + 8m²n 12. a²b4 + 2a2b4 - 9a2b4 13.-18xyz + (-5xyz) - (-12xyz) 14. 11ab - 6ab - 15ab 15. −21x² + 17x4 - 12x4​

geralddelacruzbejer · Answer

Answer:Step-by-step explain :; 15m²n³-12m²n+8m²n

9. - 8m²n²+ 7 m²n² - 15m²n² 10. -b²c³ + (-b²c³] - [-b²c³) 11. 15m²n³- 12m²n + 8m²n 12. a²b4 + 2a2b4 - 9a2b4 13.-18xyz + (-5xyz) - (-12xyz) 14. 11ab - 6ab - 15ab 15. −21x² + 17x4 - 12x4​

Answer (1)

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