Question

if x + y= 9 and xy= 20 then the value off x^2+y^2 is?

Answer 1

Answer:

(x+y)²=x²+y²+xy

81=x²+y²+20

x²+y²=61 ans

Answer 2

Answer:

value of x is 4 and y is 5 and x^2=16 and y^2 is 25 and their total is 41