kayleeguenther kayleeguenther

27-10-2017
Mathematics

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The expression (x2 + 16x + 64) – (x + 8)(x – 4) can be rewritten as k(x + 8). What is the value of k? k =

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chi3fcomm5nd chi3fcomm5nd

27-10-2017

[tex]expanding \\ {x}^{2} + 16x + 64 - ( {x}^{2} + 4x - 32) \\ distributing \: - 1 \\ {x}^{2} + 16x + 64 - {x}^{2} - 4x + 32 \\ 12x + 96 \\ take \: a \: factor \: of \: 12 \\ 12(x + 8) \\ so \: k = 12[/tex]

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