Question

If x = √5 + √3
√5 − √3
and y = √5 − √3
√5 + √3
, then find x2 + y2 + xy.

Answer 1

Step-by-step explanation:

X=[ √5+√3][√5-√3]

= (√5)^2-(√3)^2

=5-3

=2

y=[√5-√3][√5+√3]

=(√5)^2-(√3)^2

=5-3

=2

x^2+y^2+xy

=(2)^2+(2)^2+4

=4+4+4

=12

hope it helps and mark my answer as BRAINLIEST