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Mathematics 17 Online
OpenStudy (anonymous):

(x^2 + 2x - 1)(x^2 + 2x + 5)

OpenStudy (agreene):

\[x^4+4 x^3+8 x^2+8 x-5\]

OpenStudy (anonymous):

x^4+4x^3+8x^2+8x-5

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