ahusseinah75
ahusseinah75 ahusseinah75
  • 17-07-2020
  • Mathematics
contestada

find the value of k if x minus 2 is a factor of P of X that is X square + X + k​

Respuesta :

Alfpfeu
Alfpfeu Alfpfeu
  • 17-07-2020

Answer:

k = -6

Step-by-step explanation:

hello

saying that (x-2) is a factor of [tex]x^2+x+k[/tex]

means that 2 is a zero of

[tex]x^2+x+k=0 \ so\\2^2+2+k=0\\<=> 4+2+k=0\\<=> 6+k =0\\<=> k = -6[/tex]

and we can verify as

[tex](x^2+x-6)=(x-2)(x+3)[/tex]

so it is all good

hope this helps

Answer Link

Otras preguntas

16 to 19-year-old male and females are__times more likely to be involved in a crash
Expand each logarithm  Log (6*11)
If the diameter of the circle above is 16 mm, what is the area of the circle? 256 mm2 16 mm2 8 mm2 64 mm2
Whose belief in civil disobedience did the Beats emulate? A. Henry David Thoreau B. Lawrence Ferlinghetti C. Amiri Baraka D. Ezra Pound
the process of closing or state of being closed of a passage is called
15. At the Yalta Conference of 1945, the military situation favored
how does the structure of the First Amendment support equal weight of each freedom it guarantees
which area of canada has the most productive farmland
french help, thank you
Which of the following statements is true regarding sentence components? A. Every sentence must have an object. B. The object can be a noun or a verb. C. The pr