Maira A.

asked • 08/10/13

simplify: (3+4i)^(2)

a. 25+24i

b. -25+24i

c. -7+24i

d. 9+16i^(2)

1 Expert Answer

By:

Christopher G. answered • 08/10/13

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Remember that i = √(-1), so i2 = -1.

(3 + 4i)2 = (3 + 4i)(3 + 4i) = 9 + 12i + 12i + 16i2 = 9 + 24i - 16 = -7 + 24i    (choice C)

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Maira A.

got it thanks you i understand very well when you explain it may you please help me with the rest of my questions please

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08/11/13

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