Subtract the following polynomials: (x^3 - x - 4) - (x^2 + x - 4). A. -2x B. x^3 - 2x - 8 C. x^3 - x^2 D. x^3 - x^2

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Subtract the following polynomials: (x^3 - x - 4) - (x^2 + x - 4). A. -2x B. x^3 - 2x - 8 C. x^3 - x^2 D. x^3 - x^2 - 2x

(x^3 - x - 4) - (x^2 + x - 4) = x^3 - x - 4 - x^2 - x - 4 = x^3 - x^2 - 2x

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Asked 5/21/2014 10:29:58 AM

Updated 8/21/2016 1:51:35 PM

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Edited by Andrew. [8/21/2016 1:51:05 PM]

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Andrew.

(x^3 - x - 4) - (x^2 + x - 4)
= x^3 - x - 4 - x^2 - x - 4
= x^3 - x^2 - 2x

Added 8/21/2016 1:51:35 PM

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6x^2 + 7x - 20 = (3x - 4)(2x + 5)

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(2x^2 + x - 5) + (x^2 + x + 6)
= 2x^2 + x - 5 + x^2 + x + 6
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Added 12/8/2014 10:00:29 PM

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