Question

X + y = 25 x y = 26 find the value of x cube + y cube

Answer 1

the value of x^3+y^3 is equals to 17494.88

Answer 2

x=y-25-----(1) xy=26------(2)
y(y-25)=26
y squre +25y -26=0
y squere -y+26y-26=0
y(y-1)+26(y-1)=0
y-1=0 (or) y+26=0
y=1 or y=--26
from2
x(1)=26. x(26)=26
x=26. x=1
26squre+1square