2 years ago

Please explain how to solve this (12+5i) - (9-2i) i have answers but dont understand

Mathematics

2 answers:

zloy xaker [14]2 years ago

7 0

Answer: 3 + 7i

Step-by-step explanation:

Equation expanded: 12 + 5i - 9 + 2i // now simplfy

12 - 9 = 3

5i + 2i = 7i

// together, we get

3 + 7i

MaRussiya [10]2 years ago

4 0

Answer:

10i

Step-by-step explanation:

(12+5i) - (9-2i)

(17i) - (7i)

10i

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