Find the coefficient of x in the expansion (x + 3) whole cube
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Answered by
6
Answer:
please refer to the attachment
I hope it would help you.
thank you.
*_*
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![](https://hi-static.z-dn.net/files/d7c/b557aebe9dcf6cf244312850d979e4a1.jpg)
Answered by
4
Answer:
x cube +27+9x (x+3)
=x cube +27+9xsquare+27x
the coefficient of x is 27....
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