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21 March, 04:01

Factor completely, then place the answer in the proper location on the grid. 21a 2 - 57a 30

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  1. 21 March, 04:19
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    21 a² - 57 a + 30 =

    = 3 (7 a² - 19 a + 10) =

    = 3 · 7 · (a - 5/7) · (a - 2) =

    = 3 (7 a - 5) (a - 2)
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