Question

Tìm x,y biết:

x . (y-3) = -12

 Giúp đõ mk vs nha! THANKS

Answer 1

\(\Leftrightarrow\left(x,y-3\right)\in\left\{\left(1;-12\right);\left(-12;1\right);\left(2;-6\right);\left(-6;2\right);\left(3;-4\right);\left(-4;3\right);\left(4;-3\right);\left(-3;4\right);\left(6;-2\right);\left(-2;6\right);\left(12;-1\right);\left(-1;12\right)\right\}\)

hay \(\left(x,y\right)\in\left\{\left(1;-9\right);\left(-12;4\right);\left(2;-3\right);\left(-6;5\right);\left(3;-1\right);\left(-4;6\right);\left(4;0\right);\left(-3;7\right);\left(6;1\right);\left(-2;9\right);\left(12;2\right);\left(-1;15\right)\right\}\)