savvvtrees savvvtrees

01-07-2020
Mathematics

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Which expression is equivalent to (7+4i) +(8+i)

1. 15-5i
2. 15+5i
3. 5+0i
4. 20+0i

Respuesta :

Stephen46 Stephen46

01-07-2020

Answer:

The answer is number 2.

15+5i

Hope this helps

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09pqr4sT 09pqr4sT

01-07-2020

Answer:

2. 15 + 5i

Step-by-step explanation:

Remove the brackets.

7 + 4i + 8 + i

Rearrange.

7 + 8 + 4i + i

Add the like terms.

15 + 5i

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