Question

The value of expression x^4 + 4x^3 + 2x^2 - 4x + 7, when x = ✓2-1 , is :
(A) 2
(B) 3
(C) 4
(D) 6​

Answer 1

Step-by-step explanation:

The value of expression x^4 + 4x^3 + 2x^2 - 4x + 7, when x = ✓2-1 , is :

(A) 2

(B) 3

(C) 4

(D) 6