Question

2x^4+x^3-11x2+x+2=0​

Answer 1

Factored:

(x - 2) (2x - 1) (x^2 + 3x + 1) = 0

or

(x - 2) (2x - 1) (2x + 3 - sqrt(5)) (2x + 3 + sqrt(5)) = 0

Zeros:

x=2, x= 1/2, x= (sqrt(5)-3)/2, x= (-3-sqrt(5))/2