Question

(2x-2y)2
formula a2-2ab+b2 ​

Answer 1

$\sf \: {(2x - 2y)}^{2}$

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

$\sf \implies \: 4x - 2 \times 2x \times 2y + (2 {y)}^{2}$

$\sf \implies \: 4x - 8xy + (2 {y})^{2}$

$\sf \implies \: \green{ 4 {x}^{2} - 8xy + 4 {y}^{2} }$