haleybrown8888
haleybrown8888 haleybrown8888
  • 03-10-2019
  • Mathematics
contestada

Simplify (-7+3i)^2+(-2+8i)
Show all work

Respuesta :

emily10898Emily10898
emily10898Emily10898 emily10898Emily10898
  • 03-10-2019

Answer:

[tex](-7 + 3i)^{2} + (-2 + 8i) = 38 - 36i[/tex]

Step-by-step explanation:

(-7 + 3i)(-7 + 3i) + (-2 + 8i)

[tex]49 - 21i -21i + 9i^{2} = 49 - 42i -9 = 40 - 42i[/tex]

40 - 42i + (-2 + 8i)

38 - 36i

Answer Link

Otras preguntas

36 is _______% less than 60?
on sara's computer, 3/8 of the hard drive is files. Of the files, 1/6 are games . What part of the hard drive is games?
10u + 7 = 8 ( 2u - 4 ) - 9
Why did Henry Clay group his resolutions in pairs in the Compromise of 1850?
2 ( 4a - 12 ) + 3a = 6a + 1
how have computers changed mapmaking in recent years
What's breed of given cat???Check attachment
10u + 7 = 8 ( 2u - 4 ) - 9
on sara's computer, 3/8 of the hard drive is files. Of the files, 1/6 are games . What part of the hard drive is games?
10u + 7 = 8 ( 2u - 4 ) - 9