Question

If the value of x - y = 7 , then find the value of x² + y²?

With step by step explanation..
Please answer only if you know dear friend! ​

Answer 1

Answer:

x-y=7

Step-by-step explanation:

(x+y)^2=x^2+y^2-2xy. x^2+y^2=(7)^2+2.xy.