Question

If x+y+2 =0, then write the value of x³+y³+8.​

Answer 1

Step-by-step explanation:

let x+y=-2

(x+y)³+8=(-2)³+8

-8+8=0

Answer 2

Step-by-step explanation:

given x+y+2=0

cubing on both sides

(x+y+2)3=(0)3

x3+y3+8-6xy=0

x3+y3+8=6xy