Question

find the coefficient of X in the expansion of (x+3)^3

Answer 1

1 is the answer after expansion that is

Answer 2

(x+3)^3=x^3+27+3x3(x+3)

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

the degree of x means the highest degree of x in the expansion

so,here degree of x is 3