Question

factorise 4x2-9y2-6x-9y​

Answer 1

$4x {}^{2} - 9y {}^{2 } - 6x - 9x \\ 4x {}^{2} - 9y {}^{2} - 15x \\ \therefore \: (a - b) {}^{2} = a {}^{2} - 2ab + b {}^{2} \\( 4x - 9y) {}^{2} - 15x \\ 16x {}^{2} - 72xy + 81 - 15x$

Answer 2

I hope it will help . thank u