asandasoso740 asandasoso740
  • 03-06-2021
  • Mathematics
contestada

when
[tex] {x}^{3} + a {x}^{2} + 5x + 3[/tex]
is divided by
[tex]x + 2[/tex]
the remainder is b. Determine the value of b​

Respuesta :

swiler
swiler swiler
  • 04-06-2021

x³ + ax² + 5x + 3. x + 2 = 0

x = -2

(-2)³ + a(-2)² + 5(-2) + 3 = 0

-8 + 4a - 10 + 3 = 0

4a - 15 = 0

4a = 15

a = 15/4

Answer Link

Otras preguntas

When on November 11th, 1918, an armistice was signed to end World War I, the war's biggest losers were _____ because their governments ceased to exist. a. the
The Good Friday Agreement was to improve relationships in the country of A. China. B. Ireland. C. Korea. D. Israel.
What is the table for y=8x+12
Which of the following can be elusive ideas escape prisoner memories the title of the book
The series of events that make up the actual story of a play is its ______. plot dialogue setting theme
What territories did Cyrus's successors add to the Persian empire
David had $350. After shopping, he was left with $235. If c represents the amount he spent, write an equation to represent this situation. Then use the equation
What was one of Kublai Khan’s achievements?
"All integers are rational numbers" True or False
What equals 168 in multiplication