3 years ago

Simplify the expression to a + bi form: (-1 + 2i) – (12 + 7i)

Mathematics

2 answers:

givi [52]3 years ago

4 0

Answer:

-13 - 5i

Step-by-step explanation:

$( - 1 + 2i) - (12 + 7i) \\ - 1 + 2i - (12 + 7i) \\ - 1 + 2i - 12 - 7i \\ - 13 + 2i - 7i \\ = - 13 - 5i$

earnstyle [38]3 years ago

3 0

Answer:

$→( - 1 + 2i) - (12 + 7i) \\ = - 1 + 2i - 12 - 7i \\=-1-12+2i-7i \\ = \boxed{ - 13 - 5i}✓$

<u>- 13 - 5i</u> is the right answer.

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