Question

@jim_thompson5910

Find all the zeroes of the equation.
x4 – 6x2 – 7x – 6 = 0

Answer 1

(+/- 6/1)

Answer 2

so its -6 , +6, and 1

Answer 3

how did you get that ?

Answer 4

you can use wolfram alpha to get

http://www.wolframalpha.com/input/?i=x^4-6*x^2-7*x-6%3D0

Answer 5

you use the last digit of the equation and the first digital of the equation to get this between the answer (+/-1,2,3,6)

Answer 6

or use jim's way, but my way you have to test out with number ture, by pluging the number back to the equation