|Example: Factorise 3a3 - 6a2 + 3a|
Answer: (a2 - 2a + 1 ) 3a
- Factors of 3a3 are 1, 3, a, a2, 3a, 3a2, 3a3
- Factors of 6a2 are 1. 6, a, a2, 3a, 6a, 6a2
- Factors of 3a are1, 3, a, 3a
- Common factor is 3a.
- Dividing 3a3/3a + 6a2/3a + 3a/3a = a2 - 2a + 1
- factors are (a2 - 2a + 1 ) 3a
Directions: Factorise the following by HCF method.