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Mathematics
Francesca Hicks
5 February, 01:35
Factorise 2x^2 - x-21
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Lizeth Levy
5 February, 05:19
0
(x + 3) * (2x - 7)
Step-by-step explanation:
2x² - x - 21
Write as a difference
2x² + 6x - 7x - 21
Factor the expressions
2x * (x + 3) - 7 (x + 3)
Factor the expression
(x + 3) * (2x - 7)
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