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lorasvet [3.4K]
3 years ago
7

Write the product (4 + i)(4 − i) in the form a + bi.

Mathematics
2 answers:
yawa3891 [41]3 years ago
3 0

Answer:16- i^2

Step-by-step exp

foil

Kay [80]3 years ago
3 0

Answer:

17

Step-by-step explanation:

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<b = 90°   (180-90 supplementary angle)

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Step-by-step explanation:

<a = 90°   (180-90 supplementary angle)

<b = 90°   (180-90 supplementary angle)

<d = 48°   (180-132 supplementary angle)

<e = 132°  (opposite angle)

<c = 42°     (interior angles of a triangle equal 180.  180-48-90=42)

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