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jolli1 [7]
2 years ago
7

In the complex number system, which of the following is equal to

Mathematics
2 answers:
jeka942 years ago
8 0

Step-by-step explanation:

(14+2i)(7+12i)=14×7+14×12i+2i×7+2i×12i

=98+168i+14i−24

=74+182i

pogonyaev2 years ago
3 0

Answer:

C) 122+154i

Step-by-step explanation:

(14-2i)(7+12i)\\\\(14)(7)+(14)(12i)+(-2i)(7)+(-2i)(12i)\\\\98+168i-14i-24i^2\\\\98+154i-24(-1)\\\\98+154i+24\\\\122+154i

Therefore, C is correct. Recall that i^2=-1

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