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Question
Factorise the following by taking out the common factor
18xy – 12yz
Solution
18xy – 12yz = (2 × 3 × 3 × y × x) – (2 × 2 × 3 × y × z)
Taking out the common factors 2, 3, y, we get
= 2 × 3 × y(3x – 2z)
= 6y(3x – 2z)
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