marierose3210 marierose3210

08-01-2017
Mathematics

Answered

What is the simplified answer of (4-i)(6-5i)?

Verified Answer :

olemakpadu olemakpadu

08-01-2017

(4 - i)(6 - 5i)

4(6 - 5i) - i(6 - 5i)

46 - 45i - i6 - i(-5i)

24 - 20i - 6i + 5i²

24 - 26i + 5i²

But i² = -1

24 - 26i + 5i²

24 - 26i + 5(-1)

24 - 26i - 5

24 -5 -26i

19 - 26i

Hope this helps.

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