how to factorise a4b-ab4 ? Share with your friends Share 2 Priyanka Kedia answered this a4b-ab4=aba3-b3 =aba-ba2+ab+b2 Using identity:a3-b3=a-ba2+ab+b2⇒a4b-ab4=aba-ba2+ab+b2 2 View Full Answer