Dear student Cube of -23=-233=-2333=-827Square of 4-5=4-52=42-52=1625So, required answer is:-827×1625=-128675Note:abn=anbn Regards

Plz help fast

Dear student

Cube of (\frac{- 2}{3}) = {(\frac{- 2}{3})}^{3} = \frac{{(- 2)}^{3}}{3^{3}} = \frac{- 8}{27} Square of (\frac{4}{- 5}) = {(\frac{4}{- 5})}^{2} = \frac{4^{2}}{{(- 5)}^{2}} = \frac{16}{25} So, required answer is : \frac{- 8}{27} \times \frac{16}{25} = \frac{- 128}{675} Note : {(\frac{a}{b})}^{n} = \frac{a^{n}}{b^{n}}

Regards