Question

If
$x - y = 2$
and
$xy = 3$
, find the value of
$x {}^{3} - y {}^{3}$
?



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Answer 1

Step-by-step explanation:

x³-y³

= (x-y) (x²+xy+y²)

= (x-y) ((x-y)² + 3xy)

= 2*(2² + 3*3)

= 2*(4+9)

= 2*13

= 26

Answer 2

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