Then value of x kuadrat + y kuadrat =

Aljabar

y = (x-6)(x+4)
(x+4) = y/(x-6)

4y = 3(x+4)
subs nilai (x+4)
4y = 3y/(x-6)
x-6 = 3/4
x = 24+3 / 4
x = 27/4=108/16

4y = 3(27/4 + 4)
y = 81/16 + 1
y = 97/16

x^2 + y^2
= (108/16)^2 + (97/16)^2
= 11664+ 9409 / 16^2
~~ 82
=82