Factoring a^4 - b^4

[Math_Junkie]

Is this how you do it?

a^4 - b^4
= (a^2 - b^2) (a^2 + b^2)
= (a + b) (a - b) (a^2 + b^2)

 

[Deleted member 4993]

Is this how you do it?

a^4 - b^4
= (a^2 - b^2) (a^2 + b^2)
= (a + b) (a - b) (a^2 + b^2).......Correct.....