daisykaitlyn05 daisykaitlyn05
  • 23-05-2020
  • Mathematics
contestada

Write a quadratic equation whose roots are 1+8i and 1-8i

Respuesta :

osikbro
osikbro osikbro
  • 23-05-2020

Answer:

[tex]x^2-2x+65=0[/tex]

Step-by-step explanation:

If the roots of this equation are 1+8i and 1-8i, then:

[tex]x-(1+8i)=0\\x-(1-8i)=0[/tex]

And hence:

[tex]x-1-8i=0\\x-1+8i=0\\(x-1-8i)(x-1+8i)=0\\x^2-x+8ix-x+1-8i-8ix+8i+64=0\\x^2-2x+65=0[/tex]

Hope this helps!

Answer Link

Otras preguntas

Help me please thank you
Sammy counts the number of people in one section of the school auditorium. He counts 18 girls, 24 boys, and 8 adults. There are 650 people in the auditorium. Wh
Which statement about the jilting of granny weatherall most clearly describes stream of consciousness
How would a injury in the central nervous system affect the peripheral nervous system?
A coffee mixture is made from 5 pounds of coffee of $8.4 per pound and 10 pounds of coffee of $6.6 per pound. Find the price of coffee mixture per pound.
What was Harriet Tubman's greatest achievement?
Why did the state of Georgia continue to move its capital cities?
What is likely to happen in the long term if the Earth continues to absorb more energy than it emits? A. The Earth will discontinue recycling energy. B. Organis
What is the Roosevelt to the Monroe Doctrine?
What kinds of questions should you ask during an interview? Question 3 options: 1.What are the day to day responsibilities of the job? 2.What