Write Terms Explicitly: Write out the terms of the series explicitly.The series is ∑n=14(nx−1), which means we add up the terms (nx−1) for each value of n from 1 to 4.So the terms are:(1x−1)+(2x−1)+(3x−1)+(4x−1)
Combine Like Terms: Combine like terms.We can combine the x terms and the constant terms separately.(1x+2x+3x+4x)−(1+1+1+1)This simplifies to:10x−4
Check for Errors: Check for any mathematical errors.There are no mathematical errors in the previous steps. The terms were combined correctly, and the like terms were added together properly.
Write Final Answer: Write the final answer.The sum of the series from n=1 to 4 of the expression (nx−1) is 10x−4.
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