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Write the following cubes in expanded form:
(i) \((\frac{3}{2}x + 1)^3=\)
(ii) \((x − \frac{2}{3}y)^3=\)
Answer variants:
\(x^3 –\frac{8}{27} y^3 – 2x^2y + \frac{4}{3} xy^2\)
\( \frac{27}{8}x^3 + \frac{27}{4}x^2 + \frac{9}{2}x +1\)
\( \frac{27}{8}x^3 + \frac{27}{4}x^2 - \frac{9}{2}x -1\)
\(x^3 –\frac{8}{27} y^3 – 2x^2y -\frac{4}{3} xy^2\)
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