Question

please help me with this question​

Answer 1

Answer:

x^2 - x - 1 = 0

x^2 = x+1

x^2 - x = 1

x(x-1) = 1

x =1 or x =0

to find : x^3 - 2x + 1

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

= 1 -2+1

= 0

        OR

x=0

0^3 + -2(0) + 1

= 1

Correct answer is option  A . 0