Find all the zeros of the equation. x^4 -6x^2 -7x - 6 = 0

Question

anonymous · Answer

how?

anonymous · Answer

if it was me, i would use wolfram https://www.wolframalpha.com/input/?i=2x^4+-6x^2+-7x+-+6+%3D+0

anonymous · Answer

I don't know how.

anonymous · Answer

start by deriving the equation

loser66 · Answer

can you use calculator?

anonymous · Answer

I have to type every step.

loser66 · Answer

hehehe @satellite73 puts the wrong equation into wolfram

anonymous · Answer

4x^3-12x-7=0 that is ur derivative

anonymous · Answer

wait what am i thinking nvm -.-"

loser66 · Answer

@ngott3  make sure the asker understand what you say, I don't think he know what derivative is

anonymous · Answer

yea im really tired ignore what i said b4

anonymous · Answer

Sorry, I'm so confused.

loser66 · Answer

ok, take a rest, and give out the right answer, I am waiting for you

loser66 · Answer

@Burningitdown  don't worry, you can ignore all guiding, because all are not right.

anonymous · Answer

Alright.

loser66 · Answer

I don't give you mine because I count my fingers when doing math; mine is not as good as others. That's why I keep silent. but if at the end, you don't have any help , you are forced to count your fingers with me, hehehe....

anonymous · Answer

I'm terrible at math myself.

anonymous · Answer

ok well do u remember doing anything in class where ur teacher told u to take an x value and test sub it so that ur answer will be equal to zero?
well if u test sub in (-2) for ur x value u get zero this is important so that u can use long division or synthetic division?

loser66 · Answer

I am with you @ngott3

anonymous · Answer

No, since I'm online schooled it's a bit different.

anonymous · Answer

well i prefer synthetic division |dw:1387249752957:dw|