Josietrabellll Josietrabellll
  • 03-07-2018
  • Mathematics
contestada

what is the value of the coefficient 2x^3+18x^2-18x-162=2(x+k)(x-k)(x+9)

Respuesta :

frika
frika frika
  • 03-07-2018
The polynomial
[tex]2x^3+18x^2-18x-162=(2x^3+18x^2)-(18x+162)=[/tex]
[tex]=2x^2(x+9)-18(x+9)=2(x+9)(x^2-9)=2(x+9)(x+3)(x-3)[/tex].
Then k=3.

Answer Link

Otras preguntas

Solve for x. Round to the nearest tenth, if necessary.​
Which one is correct?
The banquet room is being carpeted. A floor plan of the room is shown below. Each unit represents 1 yard. The carpet costs $23.50 per square yard. How much will
Which pair of angles represent Alternate Exterior Angles? Please helpppp
Which expression is equivalent to √900f^6/100g^4
A system of linear equations is graphed. Which ordered pair is the best estimate for the solution to the system? (0, −2) (−412, 212) (−4, 212) (0, 7)
[MULTIPLE CHOICE] Which two statements correctly describe the effect of repetition in the last stanza of Robert Frost's "Stopping by Woods on a Snowy Evening"?
WILL GIVE BRAINLEST NEED HELP ASAP
−1.6 + (−2.4) math question
what changes were most likely caused by a shift in earth's continents?