Question

factorise the expression using the 27x2 - 36xy + 12y2​

Answer 1

$27 {x}^{2} - 36xy + 12 {y}^{2} \\ 3(9 {x}^{2} - 12xy + 4 {y}^{2} ) \\ 3(3.3 {x}^{2} - 2.3x.2y + 2.2 {y}^{2} ) \\ 3 {(3x - 2y)}^{2}$