Question

 Factorise using identities
 
${x}^{4} {x}^{2} 1$

 

Answer 1

HEY!!

x4 + x2+ 1

=x4 + 2x2 + 1 - x2

=(x2 + 1) - (x)2

=(x2 + 1 - x) (x2 + 1 + x)

Answer 2

Here is your answer it may help you....