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What is the coefficient of x^3 in the expansion of (x + 2)^7?

 Oct 29, 2021
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What is the coefficient of x^3 in the expansion of (x + 2)^7?

 

Hallo Gast!

 

\((x+2)^7=x^7+14x^6+...+{\color{blue}560x^3}+...+128\)

laugh  !

 Oct 30, 2021

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