IA Exam 4 Practice Problems - Exam IV Practice Problems...

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Exam IV Practice ProblemsSolve all equations algebraically over the complex. Leave all irrational and complex solutions in simplified form. Write all complex solutions in abi+form. 1. 221523562311xxxx--=-+Answer: 4 4,3 3-2. 26115xx=-Answer: 5,163. 4436x=Answer: {}3,3i4. 22611xx=-Answer: {}13,2-5. 2260xx--=Answer: 3,22-6. (2)(3)6xx-+=Answer: {}4,3-7. 2223xx=+Answer: 1728. 225xx=-Answer: {}12i9. 3188xx=Answer: 2 20,,3 3-10. 43243xxx=-Answer: {}0,1,311. 3221890xxx--+ =Answer: 13,212. 4327271xxx-= -Answer: 113,1,366i-13. 3233xxx-=Answer: 3210,21
14. 32910185 (Hint: You will use two-two grouping to solve)xxx+=+Answer: 52,315. 241233xxxxxx-+=--Answer: {}0 is excluded 3-\16. 224 Solve for yxy+=Answer: 24yx=ᄆ-17. 2Solve using the completing the square technique: 8250xx++=Answer: {}43i-18 2Solve using the Quadratic formula: 5140(Hint: The coefficient of "" is the pure imaginary number "+5 ")xixxi++=Answer: {}2 ,7ii-

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