Question

if x^2-x-1=0 then find the value of x^3-2x+1

Answer 1

Answer:

Correct option is

B

−

4

5

4

2x

=

32

1

⇒(2

2

)

2x

=

2

5

1

⇒2

4x

=2

−5

⇒4x=−5

x=

4

−5