What is the average (arithmetic mean) of all solutions to the equation $x^3-2x^2-8x=0?$

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by AAPL » Wed Dec 06, 2023 5:55 pm

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What is the average (arithmetic mean) of all solutions to the equation $x^3-2x^2-8x=0?$

A. $-2$
B. $-2/3$
C. $2/3$
D. $2$
E. $8/3$

OA C

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Source: Beat The GMAT — Problem Solving | Wed Dec 06, 2023 5:55 pm

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