Question

25. If x + y = 5 and xy = 6. Find the value of x^2 + y^2 and x - y.​

Answer 1

Step-by-step explanation:

Formula for such questions:

(x-y)^2=(x+y)^-4xy

(x-y)^2=25-4(6)

(x-y)^2=1

(x-y)=1

Now we have,

x+y=5

x-y=1

Now form 2 equations,

x=5-y

x=1+y

Hence,

5-y=1+y

2y=4

y=2

Therefore,

x=3,y=2

X^2+y^2=3^2+2^2

x^2+y^2=13

Answer 2

Answer:

x^2+y^2= 13

x-y=1

Step-by-step explanation:

please check screen shot