Question

the coefficient of X in the expansion of X + 3 ka whole cube is​

Answer 1

Answer:

(x + 3)³ = x³ + 9x² + 36x + 9

Step-by-step explanation:

==: (a + b)³ = a³ + 3a²b + 3ab² +b³

==: (x + 3)³ = x³ + 3x²*3 + 4x*3² + 3³

==: (x + 3)³ = x³ + 9x² + 36x + 9

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