princessnyjah0 princessnyjah0

22-01-2020
Mathematics

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which epression is equivalent to(4+7i)(3+4i)?

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logananway5646 logananway5646

22-01-2020

Answer:

(12+12i)

Step-by-step explanation:

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nonsibi nonsibi

22-01-2020

Using FOIL...

(4+7i)(3+4i) = 12+16i+21i+28i² = 12+37i+28i²

Because i²=-1...

12+37i+28i² = 12+37i+28(-1) = 12+37i-28 = -16+37i

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