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5 September, 08:24

Factor x3 - 7x2 - 5x + 35 by grouping. What is the resulting expression? (x2 - 7) (x - 5) (x2 - 7) (x + 5) (x2 - 5) (x - 7) (x2 + 5) (x - 7)

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  1. 5 September, 11:09
    0
    C

    Step-by-step explanation:

    group the following terms together

    [ x³ - 7x² ] + [ - 5x + 35 ] ← factor each group

    = x² (x - 7) - 5 (x - 7) ← factor out (x - 7)

    = (x - 7) (x² - 5) → C
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