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8 November, 13:43

Which of the following is equivalent to (n-3) (n-5) a. n2-8n+15, b. n2+8n-15, c. n2-15n+8

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  1. 8 November, 14:26
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    Foil the binomials

    First: n*n=n^2

    Outer: n*-5=-5n

    Inner: - 3*n=-3n

    Last: - 3*-5=15

    Put it together and simplify

    n^2-5n-3n+15

    n^2-8n+15

    Final answer: A
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