Posted by **Arthur ** on Thursday, January 27, 2011 at 4:39pm.

Use factorization to simplify the given expression in part (a). Then find the indicated limit in part (b).

(a)

3x3 + 9x2 + 9x + 3

x4 + x3 + x + 1

(b)

lim

x → −1

3x3 + 9x2 + 9x + 1

x4 + x3 + x + 1

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