Question

(2x-1)×(3x+2)×(-x-1)

Answer 1

Resposta:

$- 6 {x}^{3} - 13 {x}^{2} - 2x + 5$

Explicação a passo-a-passo:

$(2x - 1) \times (3x + 5) \times ( - x - 1) \\ (6 {x}^{2} + 10x - 3x - 5) \times ( - x - 1) \\ (6 {x}^{2} + 7x - 5) \times ( - x - 1) \\ - 6 {x}^{3} - 6 {?}^{2} - 7 {x}^{2} - 7x + 5x + 5 \\ - 6 {x}^{3} - 13 {x}^{2} - 2x + 5$