Question

if x = (-2) and y = (-3), find the value of x2-y2+xy​

Answer 1

Step-by-step explanation:

=>xy = -40 ÷ (-2) =>xy = 20. By Putting the Value of x3-y3, We get x3-y3 =( x-y)(x2+y2+xy) =3(49+xy) =3×49+20 =3×69