Question

(y-2/5x)^3
answers this plZ
​

Answer 1

$\small \bold{( \frac{y - 2}{5x} ) {}^{3} = ( \frac{y}{5x} - \frac{2}{5x} ) {}^{3} \: using \: (a - b) {}^{3}}$

$\bold{ \rightarrow \: {a}^{3} - {b}^{3} - 3ab \: (a - b)}$

$\small \bold{ \implies \: ( \frac{y}{5x} ) {}^{3} - ( \frac{2}{5x} ) {}^{3} - 3( \frac{y}{5x} )( \frac{2}{5x} )[ \frac{y}{5x} - \frac{2}{5x} ]}$

$\bold{ \implies \: \frac{ {y}^{3} }{125 {x}^{3} } - \frac{8}{125x} - \frac{6y}{25 {x}^{2} } ( \frac{y - 2}{5x} )}$

Answer 2

Answer:

Answer :

(◕ᴗ◕) In the attachment

Hope it helps you (◕ᴗ◕✿)(◕ᴗ◕✿)