Question

:(x+a)(x2-ax+a2)+(x+2y)(x2-2xy+4y2)-(2x3+8y3)

Answer 1

Respuesta:

$a^{3}$

Explicación paso a paso:

$(x + a)(x^{2} -ax+a^{2} ) +(x+2y)(x^{2} -2xy+4y^{2} )-(2x^{3} +8y^{3} )$

$x^{3} -ax^{2} +ax^{2} +ax^{2} -ax^{2} +a^{3} +x^{3} -2x^{2} y+4xy^{2} +2xy^{2} -4xy^{2} +8y^{3} - (2x^{3} +8y^{3})$

$x^{3} +a^{3} +x^{3} +8y^{3} -2x^{3} -8y^{3}$

$a^{3}$