Question

bracket mein 4 x square + X Y + 9 y square bracket x 2 x minus 3 y​

Answer 1

4x

$(4 {x}^{2}) + xy + 9 {y}^{2} (2x - 3y)$

$= 4 {x}^{2} + xy + 18x {y}^{2} - 27 {y}^{3}$