Question

Factorise: a^4 + 4

please answer me this question ​

Answer 1

Step-by-step explanation:

a^2^+2^

2x2+2

6

6is the answere

Answer 2

Answer:

x^2-2x+2

Step-by-step explanation:

=(x^4+4x^2+4)-4x^2

=(x^2+2)^2-(2x)^2

=(x^2+2-2x)(x^2+2+2x)

Thus,x^2-2x+2 is one of the factor.