Question

find (3x-2y+4)(3x-2y-4)

Answer 1

3x(3x-2y-4) -2y(3x-2y-4) +4(3x-2y-4)
$9 {x}^{2} - 6xy - 12x - 6xy + 4 {y}^{2} + 8y + 12x - 8y - 16 \\ 9 {x}^{2} + {y}^{2} - 6xy - 6xy - 12x + 12x + 8y - 8y - 16 \\ 9 {x}^{2} + {y}^{2} - 12xy - 16 \\ \\ \\ \\ hope \: it \: helps$

Answer 2

answer for you question