Question

if x-y= 3 and xy =10 then x3 -y3 ​

Answer 1

Answer:

9

Step-by-step explanation:

since, x-y= 3

3(x-y) = 3(3)

therefore

3x - 3y = 9

Answer 2

Answer:

27+90=117

Step-by-step explanation:

(x-y)^3= x^3-y^3-3xy(x-y). 3^3=x^3-y^3-30(3). x^3-y^3=90+27