no7&8 tolong di jawab dong... terima kasih . beserta caranya ya

6.
[tex]3 {}^{(x - 3)(x - y - 2)} = {3} {}^{0} [/tex]
[tex](x - 2)(x - y - 2) = 0[/tex]
[tex] {x}^{2} - xy - 2x - 2x - 2y + 4 = 0[/tex]
sisanya gtw