4 years ago

(5 - i)(5 + I)= Answer choices: 26 25i 24

Mathematics

1 answer:

astra-53 [7]4 years ago

8 0

Answer:

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

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