Factorising a single bracket

1
Factorising a single bracket

• In other words, doing the opposite of expanding
  the bracket from the answer, working back to the
  question

2
When would you have done something like it?

• 300 500
• 100(3 5)
• 23000 7000
• 1000(23 7)
• 150000 123000
• 1000(150 123)

3
Factorising with algebra is just the opposite of
expanding a bracket

• 2a 2b
• 2(a b)
• 3m 6n
• 3(m 2n)
• 15p 12pq
• 3p(5 4q)