Question

Solve the equation x^4-5x^3+4x^2+8x-8=0 given that one of the root is 1-√5

Answer 1

Step-by-step explanation:

Y=(5x24x²-8x) 5x3- 4x²-8x

=x(5x²-4x-8) Ex(5x²-10x+4x-8)

= x (5x(x-3)+4Ca-2)

= x (a-2) (51+4) Y

= (2)(Gc-2)(5x-4)