1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
babunello [35]
3 years ago
12

Find a thrid degree polynomial equation with rational coeffcients that has roots -4 and 6 +i

Mathematics
1 answer:
neonofarm [45]3 years ago
4 0
For the coefficients to be rational, any complex roots must occur in conjugate pairs. So if 6+i is a root, then so must be 6-i.

Now such a third degree polynomial might be

(x+4)(x-(6+i))(x-(6-i))=(x+4)(x^2-12x+37)=x^3-8x^2-11x+148

The only variation to this would be multiplying throughout by some non-zero constant. This doesn't change the roots.
You might be interested in
B * In Using the expression above, choose the correct answers for the new balance and the amount of interest earned in the follo
Bad White [126]
In 8 years, you will have $1,573.29 thus $850-$1573.29 = $ <span>723.29 in interest</span>
4 0
3 years ago
Read 2 more answers
Dave is on a kayaking trip. On the first day, he travels 15 miles. On the second day, he travels 35 miles and the third day he r
zubka84 [21]

Answer:

30 miles

Step-by-step explanation:

average= sum of miles ÷ days to cover = 30

HOPE IT HELPS

5 0
3 years ago
Each base in this right prism-like figure is a semicircle with a radius of 7 cm.
zheka24 [161]

Answer:490pi

Step-by-step explanation:just trust me

5 0
3 years ago
Help please if you can
antiseptic1488 [7]
What is the question?

6 0
3 years ago
What is the answer to y=15x + 25
Travka [436]

Answer:x=(y-25)/15

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • The sum of the squares of two positive integers is 394. If one integer is 2 less than the other and the larger integer is x. Fin
    14·1 answer
  • I will mark brainliest and 15 points for help!!!!
    12·1 answer
  • At what position on the number line is the red dot located
    13·1 answer
  • Make a the subject of V^2+U^2+2as
    9·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!!
    9·1 answer
  • Hal is asked to write an exponential function to represent the value of a $10,000 investment decreasing at 2% annually. What mul
    14·1 answer
  • A woman put $580 into a savings account for one year. The rate of interest on the account was 6½%. How much was the interest for
    7·1 answer
  • Translate figure A8 units to the left to form figure A’.
    7·1 answer
  • Natalia is joining an online music service that charges a monthly membership fee of $5.95. A tax of 9% is applied to the monthly
    14·1 answer
  • What is the circumference of the top of the water buoy? Round your answer to the nearest tenth.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!