Question

if x =5-4/5+4and y=5+4/5-4 then find the value of x^2+x×y+y^2

Answer 1

x = 1/9
y = 9
x² + xy + y²
= (1/9)² + 1/9 ×9 + 9²
= 1/81 + 1 +81
1/81 +82
1+(81×82)/81
1 + 6642/81
6643/81
= 82.01