barrelracerrock barrelracerrock
  • 30-08-2017
  • Mathematics
contestada

Which of the following is a factor of x^3-4x^2-18x+9

Respuesta :

briiinax3
briiinax3 briiinax3
  • 30-08-2017
(x-2)(x^2-7x+3) most likely

Answer Link
caylus
caylus caylus
  • 30-08-2017
Hello,

[tex]x^3-4x^2-18x+9\\ =x^3+3x^2-7x^2-21x+3x+9\\ =x^2(x+3)-7x(x+3)+3(x+3)\\ =(x+3)(x^2-7x+3)\\ =(x+3)(x- \frac{7- \sqrt{37}}{2} )(x- \frac{7+ \sqrt{37}}{2} )[/tex]
Answer Link

Otras preguntas

IF THE AREA OF A RECTANGLE IS 32a AND ITS WIDTH IS 4a. HOW WOULD I FIND WHAT THE LENGTH IS?
When you eliminate y What is the resulting equation of 2x+y-4=0 and 2x-y-4=0
is -1.125 a real number?
in which quadrant or on what axis does each point lie
Condensation is the process where a ___________ changes into a ___________.
in which quadrant or on what axis does each point lie
A 20 lb bag of nut mix has 40% of peanuts and 60% of cashews. To get 20% peanuts, how much of the mix should be replaced with pure cashews?
why did the battle of yorktown happen?
Can you please help me factor x^2-9x+18=2xI know you have to make it =0 so I getx^2-7x+18=0I need help finding the two terms that add to -9 and multiply to 18.
Mammals are social animals. Which of the following statements is correct? a. Herbivores such as zebras and dolphins live in herds. b. Adults in a herd surround