(3-5i)^2 i know the answer I’m just confused on how to get to that point. Please and thank you!

Qubei asked Apr 8, 2022

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26 votes

(3-5i)^2

i know the answer I’m just confused on how to get to that point. Please and thank you!

Qubei asked Apr 8, 2022

by Qubei

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19 votes

$(3-5i)^2\\\\=3^2-2(3)(5i) + (5i)^2\\\\=9-30i +25i^2\\\\=9-30i +25(-1)~~~~;[i^2=-1]\\\\=9-30i-25\\\\=-16-30i$

Honorable answered Apr 14, 2022

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