AbhiSK17 AbhiSK17
  • 25-03-2020
  • Mathematics
contestada

If (x+2) is a factor of 2x 3 + 5x 2 – x-k, then value of k is
(a) 6
(b) – 24
(C)-6 (d) 24
11

Respuesta :

afzbyjus
afzbyjus afzbyjus
  • 25-03-2020

Answer:

k = 6

Step-by-step explanation:

Solution:

p(x) = 2x^3 + 5x^2 - x - k

x + 2 = 0

x = -2

p(-2) = 2(-2)^3 + 5(-2)^2 - (-2) - k

0 = -16 + 20 + 2 - k

0 = 6 - k

Therefore, k = 6

OPTION (a) 6

PLZ MARK ME AS BRAINLIEST!!!

Answer Link

Otras preguntas

What can the reading of ancient texts help modern readers better understand
during a heavy rainstorm a city in florida received 12 ¼ inches of a rain in 25 ½ hours. what is the approximate rainfall rate in inches per hour?
Which of these molecules are amides? check all that apply?
How do you simplify 4x^3 (x^2 -5x+4)
Solve x and give our answer as a improper fraction in its simplest form: (On the attachment). Please help! Due in for tomorrow! Xx
what points can be found on the line 2y=3x+4
David purchased some cookies at the cost of 5 for $4 and sold them at 4 for $5. David made a profit of $180 in total. How many cookies did David purchase to mak
Calculate the molar solubility of pbs (ksp=9.04×10−29).
What was a main purpose of the 1866 Civil Rights Act?
Witch is greater -4 or 8/2