1.

The coefficient of x in the expression of `(x+3)^3` isA. 1B. 9C. 18D. 27

Answer» Correct Answer - D
`(x+3)^3=x^3+3^3+3xx x xx 3 xx (x+3)=x^3+9x^2+27x+27`.
So, the coefficient of x is 27.


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