cyrittiperry cyrittiperry
  • 10-11-2019
  • Mathematics
contestada

Multiply and simplify the product. 2i(4 – 5i)

Respuesta :

Аноним Аноним
  • 10-11-2019

Answer:

10 + 8i.

Step-by-step explanation:

2i(4 – 5i)     Distribute the 2i:

= 2i*4 + 2i * -5i

= 8i - 10i^2          Note i^2 = - 1 so we have:

8i - 10* -1

= 8i + 10

= 10 + 8i.

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