#### Answer

4 / ($x^{2}$ - x + 1)

#### Work Step by Step

(4x + 4) / ($x^{3}$ + 1)
= 4(x + 1) / ($x^{2}$ - x + 1)(x + 1)
= 4 / ($x^{2}$ - x + 1)

Published by
Pearson

ISBN 10:
0321785045

ISBN 13:
978-0-32178-504-6

4 / ($x^{2}$ - x + 1)

(4x + 4) / ($x^{3}$ + 1)
= 4(x + 1) / ($x^{2}$ - x + 1)(x + 1)
= 4 / ($x^{2}$ - x + 1)

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