1.

(5x3 - 3x2 - 1)+ (2x2 + x - 3)?

A. 4x7 + x - 4
B. 5x3 - x4 + x - 4
C. 5x3 - x2 + x - 4
D. 5x3 + x2 + x -2
Answer» D. 5x3 + x2 + x -2


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