Question

If x-y=7 and xy=9. Find the value of x^2+y^2.

Please only try if you are good in it.......
And got 5 point​

Answer 1

Step-by-step explanation:

x-y=7

(x-y)^2=7^2

x^2+y^2-2xy=49

according to question

x^2+y^2-2*9=49

x^2+y^2=49+18=67

Answer 2

Answer:

67

refer to this attachtment...