Question

(x-2y)³ pls tell how to solve this step by step​

Answer 1

${(x - 2y)}^{3}$

$= {x}^{3} - 8 {y}^{3} - 6xy(x - 2y)$

$= {x}^{3} - 8 {y}^{3} - 6 {x}^{2} y- 12x {y}^{2}$

hope it helps!

Answer 2

$\huge\mathfrak\purple{Answer}$

$( {x - 2y)}^{3}$

$by \: using \: formula \\ ( {a - b)}^{3} = {a}^{3} - {b}^{3} - 3ab(a - b)$

$( {x - 2y)}^{3} \\ {x}^{3} - {(2y)}^{3} - 3(x)(2y)(x - 2y) \\ {x}^{3} - 8 {y}^{3} - 6xy(x - 2y) \\ {x}^{3} - 8 {y}^{3} - 6 {x}^{2} y - 12x {y}^{2}$