Question

x³-y³ simplify
please
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Answer 1

Answer:

x3 - y3 = ( x- y ) ( x2 + xy + y2 )

Step-by-step explanation:

you know that

( x- y)3 = x3+3xy(x-y) - y3

then x3-y3

(x-y)3 + 3xy (x-y)

(x-y){(x-y)2 + 3xy}

(x-y) (x2-2xy+y2+3xy)

(x-y) (x2+xy+y2)