Perform the indicated operations.( 5x4 - 10x2 + 5x ) - ( 7x3 + 7x2 - 7x + 7)
A. 5x4 + 7x3 + 17x2 + 12x - 7
B. 5x4 - 7x3 - 3x2 - 2x + 7
C. 12x7 + 13x3 + 7
D. 5x4 - 7x3 - 17x2 + 12x - 7
Answer: D
Mathematics
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