Question

X-y = 5 and xy = 12 then what is the value of x and y

Answer 1

Answer:

Step-by-step explanation:

[x+y]^2=25=X^2+y^2+2xy

1=x^2+y^2

[x-y]^2=x^2+y^2-2xy=

x^2-y^2=49

so from 1 and 2

2x^2=50

x^2=25

x=5

from x-y=5

y=x-5

y=0