perform the operations and write the result in standard form. 12. (10+ 20)-(4--14) 14. (4 +...

  

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perform the operations and write the result in standard form. 12. (10+ 20)-(4--14) 14. (4 + 3i) (5 + i) 11. (8 3i) + (1 15i) 13. (2 + i)(6-i) In Exercises 15-17, write the quotient in standard form. 8 + 5i Si 16. 6-i 2+i 18. Plot the complex number 3 - 2i in the complex plane. 15. 17. (211)+ (31 + 2) perform the operations and write the result in standard form. 12. (10+ 20)-(4--14) 14. (4 + 3i) (5 + i) 11. (8 3i) + (1 15i) 13. (2 + i)(6-i) In Exercises 15-17, write the quotient in standard form. 8 + 5i Si 16. 6-i 2+i 18. Plot the complex number 3 - 2i in the complex plane. 15. 17. (211)+ (31 + 2)