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Question
Factorise.
20x2 − 26x + 8
Sum
Solution
20x2 − 26x + 8
= 2 (10x2 − 13x + 4)
= 2 (10x2 − 5x − 8x + 4)
= 2[5x(2x − 1) − 4(2x − 1)]
= 2(2x − 1)(5x − 4)
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