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Factorising a single bracket. In other words, doing the opposite of expanding the bracket: from the answer, working back to the question. When would you have done something like it?. 300 + 500 = 100(3 + 5) 23000 – 7000 = 1000(23 – 7) 150000 – 123000 = 1000(150 – 123).
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Factorising a single bracket In other words, doing the opposite of expanding the bracket: from the answer, working back to the question
When would you have done something like it? • 300 + 500 = 100(3 + 5) • 23000 – 7000 = 1000(23 – 7) • 150000 – 123000 = 1000(150 – 123)
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)