3 years ago

Write the product in standard form. ( 9 + 5i)( 9 + 8i)

Mathematics

1 answer:

disa [49]3 years ago

8 0

( 9 + 5i)( 9 + 8i)
= 9(9+8i)+5i(9+8i)
= 81+72i+45i+40i^2
= 81+117i+40(-1)
= 81-40+117i
= 41+117i. Answer

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