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The complex conjugate pair -4 ± 6.325i where i is the imaginary square root of -1.
The numbers are: -25 and -30
15.268 and 18.732
4
-19
-1
7.5516 and 70.4484 (approx)
49
The numbers are 10 and 5.2
-9+4
2.4115 and 33.5885 (to 4 dp)
8, 5 and 2
The numbers are: 30 and -30