samanthasa samanthasa
  • 13-08-2020
  • Mathematics
contestada

(3 + 2i) + (-5 + 7i) Add or subtract the complex numbers as needed and write your answer in the simplest a+bi form.

Respuesta :

S1NGH
S1NGH S1NGH
  • 13-08-2020

Answer:

-2 + 9i

Step-by-step explanation:

( 3 + 2i ) + ( -5 + 7i )

→ Remove brackets

3 + 2i +- 5 + 7i

→ Remember that the negative cancels out the plus

3 + 2i - 5 + 7i

→ Add the whole numbers together

-2 + 2i + 7i

→ Add the i values together

-2 + 9i

Answer Link
ujalakhan18
ujalakhan18 ujalakhan18
  • 13-08-2020

Answer:

[tex]\huge\boxed{-2 + 9i}[/tex]

Step-by-step explanation:

[tex]\sf (3+2i)+(-5+7i)\\Expanding \ Parenthsis\\3+2i -5 +7i\\Combining \ like \ terms\\3-5 + 2i+7i\\-2 + 9i[/tex]

This is the required answer in the form a + b i

Answer Link

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