Question

the coefficient of X in the expansion of ( X+3)³ is​

Answer 1

Step-by-step explanation:

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

Coefficient of x in expansion of ( x + 3 )³ is 27.

Answer 2

Answer:

X=27

Step-by-step explanation:

Now,(x+3)^3=x^3+3^3+3(3)(x+3)

Using identity [(a+b)^3=a^3+b^3+3ab(a+b)]

=x^3+27+9x(x+3)

=x^3+27+9x^2+27x

Hence the coefficient of x in (X+3)^2=27..

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