Question

find the value of the following using formulae
x^3-y^3 if x-y=-8 and x×y=-12​

Answer 1

Answer:

x^3-y^3

(x-y)(x^2+xy+y^2)

(x-y){(x^2+y^2)+xy}

(x-y){(x-y)(x-y)+xy}

(-8){(-8)(-8)(-12)}

6144