gabriellegraham21 gabriellegraham21

09-09-2020
Mathematics

contestada

(5 - i)(5 + I)=

Answer choices:
26
25i
24

Respuesta :

hippopotamus hippopotamus

09-09-2020

Answer:

26

Step-by-step explanation:

We can use difference of squares:

(5 - i)(5 + i) = 5^2 - i^2

i^2 = -1, so we have 25 - (-1) = 25 + 1 = 26

Answer Link

almafalaniew almafalaniew

05-08-2021

Answer:

26

Step-by-step explanation:

Answer Link

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