Question

:Si M ={a+b;8} y N = {a - b;4}son unitarios.
Halla "a.b"​

Answer 1

Respuesta:

$a + b = 8 \\ a - b = 4 \\ a + b + a - b = 8 + 4 \\ 2a = 12 \\ a = 6 \\ b = 2 \\ respuesta = a \times b = 6 \times 2 = 12$