Question

If (x+y) = 9 and xy = 16, find the value of x² + y²

Answer 1

value of x² + y² = 49

hope it helps you ☺️

Answer 2

Answer:

14

Step-by-step explanation:

Because,

(a+b)^2=a^2+b^2+2ab

therefore ,

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

(9)^2=x^2+y^2+2×16

81=x^2+y^2+32

x^2+y^2+32=81

x^2+y^2=81-32

therefore,

x^2+y^2=14

I hope it will help u dear....