Two mark exercise problems IV — task. Mathematics State Board, Class 9.

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Answer variants:

x^{3} + \frac{{3 x}^{2}}{y} + \frac{3 x}{y^{2}} + \frac{1}{y^{3}}

{27 a}^{3} - {108 a}^{2} b + {144 ab}^{2} - {64 b}^{3}

\frac{{3 x}^{2}}{y} + \frac{3 x}{y^{2}} + \frac{1}{y^{3}} + \frac{1}{x^{3}}

{27 a}^{3} - {108 a}^{2} b - {144 ab}^{2} + {64 b}^{3}

1. Expand:

2. Evaluate the following by using identities:

Did you find an error?

15. Two mark exercise problems IV