tatorbugt17 tatorbugt17

11-03-2017
Mathematics

contestada

Without solving the equation, determine the nature of the roots of x^2 - 2x - 8 = 0.

Respuesta :

ghanami ghanami

11-03-2017

Hello
x²-2x-8=0
(x²-2x+1)-1-8=0
(x-1)² -3² =0
(x-1+3)(x-1-3)=0
(x+2)(x-4)=0
x+2=0 or x-4=0
x=-2 or x=4
the roots in Z

Answer Link

Otras preguntas

Sean is forecasting the time and cost of developing a customized software program by looking at the number of inputs, outputs, inquiries, files, and interfaces.

A condition in the brain, heart or other body arteries in which there is a bulge on the wall of the artery that can cause dangerous bleeding if it bursts is kno

Help please!!!!!!!!!!

A student connects a 1 hp motor to a bicycle. How much time will it take for the bicycle to accelerate from rest to a speed of 5.0 m/s if the combined mass of t

El sábado pasado en nuestro programa "Actualidad" (nosotros) (1) (tener) como invitado al famoso comentarista deportivo José Ramón García. Sin embargo, él no (2

please help me. thanks !

Determine the indicated probability for a binomial experiment with the given number of trials n and the given success probability p. n = 12, p = 0.6, P(Fewer th

The person asking the questions is in control- you should never be merely responding to questions, but rather engaged in an active dialogue with the interviewer

Other things the same, if the U.S. price level falls, then a. U.S. residents want to buy more foreign bonds. The real exchange rate rises. b. U.S. residents wan

Offering regular customers discounts on products is known as a(n) A) Obribe. B) margin of error. C) calculated risk. D) external incentive.