7.The co-efficient of x in the expansion of(x+3) is -if ya is a factor – InterviewSolution

1.

7.The co-efficient of x in the expansion of(x+3) is -if ya is a factor of

Answer»

(x+3)3= x3+ 27 + 9x(x+3) =x3+ 27 +9x2+27x.

Therefore coefficient of x is 27.

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