Question

x-y=2
x.y=120 presiso urgente dessa resposta? ?

Answer 1

x=2+y
(2+y)*y=120
2y+y^2=120
y^2+2y-120=0
d=2^2-4(1)(-120)
d=484
baskara=
-b+-√∆/2*a
x'=-2+-22/2=
x1=-24/2
x1=-12
x2=20/2
x2=10
S{-12,10}