timdjinks timdjinks

04-08-2021
Mathematics

contestada

SImplify to standard form (a+bi)
(12-9i)²

Respuesta :

04-08-2021

Answer:

Hello,

Step-by-step explanation:

Formula used (a+b)^2=a²+2ab+b²

[tex](12-9i)^2=3^2*(4-3i)^2\\\\=9*(16-9-24i)\\\\=9*(7-24i)\\\\=63-216i\\[/tex]

Answer Link

Otras preguntas

Ryan has 8 kittens . Two are write . What fraction of the kittens are not white.

The judicial system in which the prosecution and the defense present their strongest case is known as a(n) ____________. a. procedural system b.common law sys

The radius of a cylinder gift box is (4x+1) inches. The height of the box is twice the radius. What is the surface area of the cylinder?

what does true breeding mean?

I will add friend and like profile if you help me. 13 x 12 - n = 144 What does n equal

In this 1892 political cartoon, Cecil Rhodes is pictured straddling the continent of Africa with a telegraph line that will stretch from "Cape Town to Cairo." W

Mrs. Cho drives 45 miles in 1 hour.If her speed stays constant,how many hours will it take for her to drive 405 miles?

There were n signers of the declaration of independence. the oldest was benjamin franklin, who was yy years old. 7 is 10% of yy and nn is 80% of yy. how many si

Can someone please help me with the meaning of the two similes in stolen rivers

help I need help on all of them