Question

if x - 2y = 8 and xy = 6 find the value of x cube minus 8 y cube​

Answer 1

Answer:

800

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

xy=6

y=6/x

x-2y=8

x-2(6/x)=8

x-12/x=8

x²-12/x=8

x²-12=8x

x²-8x-12=0   2y should be there

i think equation is wrong  x +2y should be there. or we have to do it with method of discriminant