Question

Fatore o binomio de grau 3 8z ³ - 1

Answer 1

$a^{3} - b^{3} =(a-b).( a^{2} +ab +b^{2} )$

$(2z)^{3} - (1)^{3} =(2z-1).( (2z)^{2} +2z.1 +1^{2} )$$=(2z-1).( 4z^{2} +2z +1 )$