Respuesta :

deaserenity
x+y=12
y=12-x ........ ①
xy=27 .........②

x(12-x)=27
-x^2+12x-27=0
(x-3)(x-9)=0

Where x = 3 , x=9


Substitute x=3 and x=9 in ①
y=12-3
y=9


y=12-9
y=3


x^3+y^3=?

3^3+9^3=756 Or 9^3+3^3=756

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