Question

expand using suitable identity (x-2y)²​

Answer 1

Answer:

${x}^{2} - 4xy + 4{y}^{2}$

Step-by-step explanation:

as

${(a - b) }^{2} = \: {(a)}^{2} - 2 \times a \times b + {(b)}^{2}$

thus (x-2y)^2 =

${(x)}^{2} - 2 \times x \times 2y + {(2y)}^{2}$

hope it helps : )