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Question
Factorise the following expression.
2x2 – 2y + 4xy – x
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Solution
We have,
2x2 – 2y + 4xy – x
= 2x2 – x – 2y + 4xy
= x(2x – 1) – 2y(1 – 2x)
= x(2x – 1) + 2y(2x – 1)
= (2x – 1)(x + 2y)
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