Question

Factorise: 2a +6b -3(a+3b)²

Answer 1

2(a+3b) – 3(a+3b) ²

Now by taking (a+3b) as a common factor for the above equation we get,

2(a+3b) – 3(a+3b)² 

= (a+3b) (2 – 3(a+3b))

= (a+3b) (2- 3a -9b)