Question

expand = (3/2x-1)^3​

Answer 1

$( \frac{3}{2x} - 1)^{3}$

$using \: identity \: 7$

$= ( \frac{3}{2x} )^{3} - (1)^{3} - 3( \frac{3}{2x} )^{2}(1) + 3( \frac{3}{2x} )(1) ^{2}$

$\frac{27}{8x^{3} } - 1 - 3 \times \frac{9}{4 {x}^{2} } \times 1 + 3 \times ( \frac{3}{2x} ) \times 1$

$= \frac{27}{8 {x}^{3} } - 1 - \frac{27}{4x^{2} } + \frac{9}{2}$

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