Question

If x+y-10 and xy=6 then the value of x2 + y2

Answer 1

Step-by-step explanation:

according to equation two

xy = 10

y = 10/x

putting value of y in equation first

x-10/x = 6

x2 -10/x = 6

x2 -6 - 10 x =0

than solve ,