Factorise each of the following:
1. 9x2 - 6x + 1
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Answered by
7
Answer:
(3x- 1)²
Step-by-step explanation:
9x² - 3x - 3x + 1
= 3x (3x - 1) -1(3x - 1)
= (3x - 1) (3x - 1)
= (3x - 1)²
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