Question

Can x^4 +2x-1=0 be solved algebraically?

Answer 1

yes, with synthetic division

Answer 2

or long division whichever you prefer

Answer 3

confirm that the 2nd term is just an x
if that is the case must use differnt method than factoring.

Answer 4

Could I solve it by completing the square also?

Answer 5

The only rational zeros possible are 1 and -1. Try them. Then use synthetic division to get a quotient with a remainder of 0

Answer 6

@Dock-\[x ^{4}+2x-1=0\] This is the question, what must you divide this with?

Answer 7

Well 1 or -1 don't work, it will be irrational zeros

Answer 8

Awesome one Luis

Answer 9

Why do you use the quadratic formula on a quartic function?

Answer 10

Got it correct! Thanks!

Answer 11

you can't use quadratic formula on quartic function...

Answer 12

you must have mistyped x^2 as x^4

Answer 13

Sorry guys I meant x^2

Answer 14

yes then use quadratic formula like luis

Answer 15

\[-2\pm \sqrt{2+4}/2\]Rofl Jtla its easy then..
x^2 +2x-1=0
Use the formula:
\[-2\pm \sqrt{6}/2\]