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

i need help fast will give brainiest!!!!
seattle personification examples
Où est La Rochelle?​
Think about the biggest myth you were told as an 8th grade about 9th grade
Can you help me with this it shouldnt be to herd it’s seventh grade
At the end of the year a car is worth 5% less than what it was worth at the beginning of the year. If a car was worth $9 500 in December 2016, then its value i
What was the first species in a area
PLEASE HELP WITH MY HOMEWORK!!
Mr. Herman's class is selling candy for a school fundraiser. The class has a goal of raising $500 by selling c, boxes of candy. For every box they sell, they m
What is the difference between a character feature and a character trait?