What is (5- 6i ) ( 6- 2i )(5−6i)(6−2i)?

1 Answer
Jim G.
Jul 26, 2018

18-46i18−46i

Explanation:

" note that "i^2=(sqrt(-1))^2=-1 note that i2=(√−1)2=−1

"Expanding factors gives"Expanding factors gives

30-10i-36i+12i^230−10i−36i+12i2

=30-46i-12=30−46i−12

=18-46i=18−46i

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