Question

1. Factorise :9- a6 + 2a3b3 – b6
​

Answer 1

Answer:

9-(a³+b³)²

Step-by-step explanation:

9-a6+2a³b³+b6

= 9-(a³)²+2(a³)(b³)+(b³)2

We know that a²+2ab+b² =(a+b)²

So 9-(a³)²+2(a³)(b³)+(b³)² = 9-(a³+b³)²