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3 years ago

Simplify (–2 + 10i)(–2 – 10i)

Mathematics

2 answers:

lilavasa [31]3 years ago

8 0

(−2+10i)(−2−10i) =104

Mice21 [21]3 years ago

8 0

Answer:

104

Step-by-step explanation:

(-2 + 10i) (-2 – 10i)

Distribute using FOIL (first, outer, inner, last).

(-2)(-2) + (-2)(-10i) + (10i)(-2) + (10i)(-10i)

4 + 20i – 20i – 100i²

4 – 100i²

4 + 100

104

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