Question

factorized x2+2+1/x2​

Answer 1

ANSWER

Using the formula a2+b2+2ab=(a+b)2

with a= (x2+x) , b=2

(x2+x)2+4(x2+x)+4−16

(x2+x+2)2−16

Using a2−b2=(a+b)(a−b)

(x2+x+2−4)(x2+x+2+4)

(x2+x−2)(x2+x+6)