Find the value of `(x+y)^3-(x^3+y^3)`

If x=1, y=2 and z=3 , find the value of: x^3-z^3+y^3

If x+y=12 and x y=27 , find the value of x^3+y^3

If x+y=12 and x y=27 , find the value of x^3+y^3

If x-y=4 and x y=21 , find the value of x^3-y^3dot

If 2x- 3y= 10 and xy= 16 , find the value of 8x^(3)- 27y^(3)

If (x^(2)+y^(2))/(x^(2)-y^(2))=17/(8) , using the properties of proportion find the value of : (ii) (x^(3)+y^(3))/(x^(3)-y^(3))

If 2x+3y=13 and x y=6, find the value of 8x^3+27 y^3

If 2x+3y=13 and x y=6 , find the value of 8x^3+27 y^3

If x+y+z=1,\ x y+y z+z x=-1\ \ a n d\ x y z=-1, find the value of x^3+y^3+z^3

Find the value of : (i) x^(3)+y^(3)-12xy+64 , when x+y=-4 (ii) x^(3)-8y^(3)-36xy-216 , when x=2y+6