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1. |
Q: Find the sum of 2x terms of the series ( 12 - 22 + 32 - 42 + ___ ) |
A. | x² ( 2x + 1 ) |
B. | - x2 ( 2x + 1 ) |
C. | x ( 2x + 1 ) |
D. | -x ( 2x + 1 ) |
Answer» C. x ( 2x + 1 ) | |