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Colin (Parent) January 24 2017
Using the Example 9Y + 6
Factorising means to remove a common factor from both the ‘9Y’ term and the ‘6’ – this common factor will then be placed outside the brackets.
For us to complete this question, we must first find the largest number that can divide into both coefficients 9 and 6 – this of course being 3 because 9Y and 6 can be divided by 3 to give whole integer answers.
9Y / 3 = 3Y
6/3 = 2
So having found our largest common factor, and dividing our coefficients our factorisation becomes: 3(3Y + 2). The bracket represents our division sum answers and the 3 outside our common factor.
For practice have a try at these questions:
1) 6X + 12
2) 5Y + 15
3) 2X + 36
4) 4Y – 24see more