Question

The factors of x^4+4 are

(a) (x^2 + 2)^2
(b) (x^2+ 2) (x²+ 2)
(c)(x^2 + 2x + 2) (x^2-2x +2)
(d) None of these​

Answer 1

Answer:

option (c) (x²+2x+2)(x²-2x+2) is correct