gellyled
gellyled gellyled
  • 10-09-2021
  • Mathematics
contestada

Simplify the expression to a + bi form:
(-7+5i) (5 + 3i)

Respuesta :

manissaha129
manissaha129 manissaha129
  • 10-09-2021

Answer:

We know that, i = √-1 => i² = -1

[tex]→( - 7 + 5i)(5 + 3i) \\ = - 35 - 21i + 25i + 15 {i}^{2} \\ = - 35 - 21i + 25i - 15 \\ = \boxed{- 50 + 4i}✓[/tex]

  • -50 + 4i is the right answer.
Answer Link
Yang100
Yang100 Yang100
  • 10-09-2021

Answer:

-50+4i

Step-by-step explanation:

(-7+5i)(5+3i)

-35+25i-21i+15i^2 where i^2=-1

-35+4i+15(-1)

-35-15+4i

-50+4i

Please mark me as Brainliest if you're satisfied with the answer.

Answer Link

Otras preguntas

Which statement regarding the interior and exterior angles of a triangle
Which point of view Uses a narrator that could be nickednamed know it all? First person Objective Limited Omniscient Omniscient
Simplify the following expression.
This excerpt was written by Olaudah Equiano, an enslaved African who was taken to Barbados. Read the passage, then answer the question. Their huts, which ought
how is the industrialization in britain significant to history??
Your best friend told you that last week they discovered that there is a new galaxy very similar to ours. Which do you think is BEST way to research this recent
How long is AC Angle B =60° And BC = 3√ 3
a bicycle tire is 28 inches in diameter. approximately how far does the bicycle move forward each time the wheel goes around? (use 22/7 as an approximation for
A membrane protein that spans the phospholipid bilayer one or more times is _____.
What is a such idea of this paragraph