Question

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

Answer 1

Объяснение:

$x ^{2} \times (x - y) + x y \times (x - y) - y^{2} \times (x - y)$

$x^{3} - x^{2} y + x^{2} y - xy^{2} - xy^{2} + y^{3}$

$x^{3} - xy ^{2} - xy^{2} + {y}^{3}$

${x}^{3} - 2x {y}^{2} + {y}^{3}$