SOLUTION: How do i solve the following problem? 2-i)^3
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Question 874739
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How do i solve the following problem?
2-i)^3
Answer by
rothauserc(4718)
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(2-i)^3 = (2-i)(2-i)(2-i)
= (4-4i+i^2)(2-i)
note that i^2 = -1
= (3-4i)(2-i)
= 6-11i+4i^2
= 2-11i
note that i = square root(-1)
= 2 - 11*square root(-1)