eoliveri3583
eoliveri3583 eoliveri3583
  • 22-02-2021
  • Mathematics
contestada

Simplify the expression: (3 − 7i)(2 − 5i)

Respuesta :

Isabellamarin2005 Isabellamarin2005
  • 22-02-2021

Answer:

( 3 -  7i) • ( 2 -  5i) = ( -  29 -  29i)

Step-by-step explanation:

The formula is :

(a+bi) • (x+yi)  = ax+by•i^2+(ay+bx)i

and since  i^2 = -1  it can be written as :

ax - by + (ay + bx) i

( 3 -  7i) • ( 2 -  5i) =

 ( -  29 -  29i)

Answer Link
rayleencoria rayleencoria
  • 22-02-2021

Answer:

—29 - —29i

Step-by-step explanation:

Answer Link

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