The domain for f(x) and g(x) is all real numbers. Let f(x) = x2 + 1 and g(x) = x4 − 1.

Find f · g.

A.
x6 + x4 − x2 − 1

B.
x4 + x2 − 1

C.
x8 + x4 − x2 + 1

D.
x6 − x2 − 1The domain for f(x) and g(x) is all real numbers.

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