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

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

User Thegnuu
by
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1 Answer

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( 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
User Antoine Laffargue
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