How to this expression $a^6+a^4+a^2b^2+b^4-b^6\;?$

Question

I'm trying to factor this expression but I can not, please can anyone help me? $a^6+a^4+a^2b^2+b^4-b^6$ ?

Answer 1

You may use this $$(a^2)^3-(b^2)^3=(a^2-b^2)(a^4+a^2b^2+b^4)$$

Can you do the rest?