trapperwilson trapperwilson

01-11-2017
Mathematics

contestada

X to the fourth power minus x to the third power plus 2x to the second power minus 4x minus
8=0

Respuesta :

tynollette tynollette

01-11-2017

regroup:
(x^4+2x^2-8)-(x^3+4x)=0
Factor: (x^2-2)(x^2+4)-x(x^2+4)=0
both terms have (x^2+4), so (x^2+4)(X^2-x-2)=0
factor again: (x^2+4)(x+1)(x-2)=0
x=1, x=2, x=2i, or x=-2i

Answer Link

Otras preguntas

12w - 27 = - 34+14w Select the equation that has the same solution as the given equation above.

11. Select the adjective that would match the correct emotion: Elle a beaucoup de devoirs et d'examens. Elle est __________. (2 points) heureuse épuisée con

A leaky faucet is losing water and is filling a 5 gallon bucket every 20 hours. A At that rate, how many gallons of water will the faucet leak in 48 hours?

which term best describes the “phrase success through perseverance”

how did the mongols gain power

To ensure that the Civil Rights Act of 1866 would not be overturned, Congress proposed the ____________________ Amendment, which would grant citizenship to Afri

“I allude to the question of slavery. Opposition to its further extension . . . is a deeply rooted determination . . . in what we call the non-slave holding sta

Under what conditions is the change in internal energy, δe rxn , equal to the heat evolved in a chemical reaction?

Match the following events to the communication methods used to spread the news globally. Tiles social media telecommunication satellites fax machines Pairs Ara

WILL MARK BRAINLIEST -How did Europe's population respond to end of the wars over religion and territory?