Question

6. The coefficient of x in the expansion of (x + 3)^3​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

27

Step-by-step explanation:

(x+3)^3

expanding

$x^{3} + 9 + 9x(x+3)$                                                $(x + y)^{3} = x^{3} + y^{3} + 3xy(x + y )$

$x^{3} + 9 + 9x^{2} + 27x$

∴ coefficient of x is 27

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