Question

7.
Find the coefficient of x in the expansion of (x + 3)3​

Answer 1

Answer:

6

Step-by-step explanation:

(x+3)3

3x+3

coefficient of x = 3+3=6

Answer 2

$\huge\rm\underline\bold\red{ANSWER}$

Using the formula, (a+b)³ =a³+b³+3a²b+3ab²

(x+3)³ = x³+27+9x²+27x

Therefore, coefficient of x is 27