passpadi

2006

Mathematics

POST UTME

Expand the expression (x2-2x-3)(x2+x+1).

A.

x4-4x2-5x-3

B.

–x3-4x2+5x-3

C.

x4-x3-4x2-5x-3

D.

x4-4x2-5x -3

Correct Answer: x4-x3-4x2-5x-3

Explanation

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