Question

Ex. 21. Simplify:
658 x 658x658-328x328x328
= ?
658x658 +658x328 +328x328​

Answer 1

658×658+658×328+328×328

(a³–b³)= (a-b)(a²+ab+b²)

So, ? = (a-b)= 658-328= 330

Hope it will help you

Answer 2

Answer:

a.24,96,02,760 b.7,56,372