Factorise

find ^{_(a2 _{- b}2₎3}  

^{_(a2 _{- b}2_{) .(a}2 _{- b}2_).(a2 _{- b}2_{)=a^6-3a^4b^2+3a^2b^4-b^6}}

^{_{simillarly we can get (b}2 _{- c}2₎3}

and

^{_(c 2_{- a}2₎3}

^{now when we will add these three we wil get}

^{3a^4(c^2-b^2) + 3b^4(a^2-c^2)+3c^4(b^2-a^2)}