Question

The coefficient of x2 in (3x – 1/2)3 is​

Answer 1

Answer:

Hey mate

The answer is 0 because there is no x2 in the question. So the coefficient is 0

Hope it helps

Answer 2

Answer:

The coefficient of (x - 2)³ = -6

Given:

Expansion of (x -2)³

To find:

The coefficient of (x -2)³

Solution:

By formula,(a -b)³ = a³- b³ - 3a²b + 3ab²

Substitute the values of a and b in the above formula, where a = x,b = 2.

(x - 2 )³ = x³ - 2³ - 3x²(2) + 3x²(2)²

(x - 2)³ = x³ - 8 - 6x² + 12x

To find the coefficient of x³ ,find the term with x² in the above equation,

Therefore, The coefficient of x² = -6

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