cnthornberry cnthornberry

12-09-2021
Mathematics

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Simplify the expression. (6 - 4i)(-1 + 6i)

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altavistard altavistard

12-09-2021

Answer:

18 + 40i

Step-by-step explanation:

This is the product of two binomials:

Recall that (a + b)(c + d) = ac + ad +bc + bd; thus,

(6 - 4i)(-1 + 6i) = -6 + 36i + 4i + 24, or

= 18 + 40i

(Recall that i^2 = -1.)

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