###### tags: `OTM 06` `Algebra, Factorisation`
#
<font size = 5>
Known that $a, b$ are positive integers, and $a + ab + b = 25$,
What is the value of a + b ?
- Hint: you need to factorise twice.
</font>
{"metaMigratedAt":"2023-06-18T01:20:54.330Z","metaMigratedFrom":"YAML","title":"OTM 06 （Algebra）","breaks":true,"description":"Algebra, Factorization, Balancing factorising","slideOptions":"{\"theme\":\"white\"}","contributors":"[{\"id\":\"d8479402-2b3f-4751-92f6-b67f55f4b94f\",\"add\":388,\"del\":0}]"}