Question

calcule (2x-1).(3x+2).(-x-1)

Answer 1

$(2x-1)(3x+2)(-x-1)$
$(6x^{2}+4x-3x-2)(-x-1)$
$(6x^{2}+x-2)(-x-1)$
$-6x^{3}-x^{2}+2x-6x^{2}-x+2$
$-6x^{3}-7x^{2}+x+2$