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Maritza Mosley
Mathematics
13 February, 04:49
Factor the polynomial by grouping 7x2+16x-15
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Julius Levine
13 February, 05:10
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16x can be broken down into factors of - 105.
21 and - 5 come to mind.
7x² + 21x - 5x - 15
7x (x + 3) - 5 (x + 3)
(7x - 5) (x + 3) is the factorised form.
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