Question

Factorise fully
15
b
+
20

Answer 1

`15b \: + 20`

• Take 5 common from both the terms.

`= 5(3b + 4)`

• 3b + 4 cannot be factorised further.

Answer:

5(3b + 4)

Hope you could understand.

If you have any query, feel free to ask.

Answer 2

`\longmapsto \: 15b + 20`

`\longmapsto \: 5(3b + 20)`