Question: Given that (1 3x) -4 - (1 + 2x) 3/2 9x + kx 2 for small values of x, find the value of

Given that (1 − 3x)-4 - (1 + 2x)3/2 ≈ 9x + kx2  for small values of x, find the value of the constant k.

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