Question

1) Determine o ,produtos dos polinômios:
a) (x +9). (x-20)
b) (x + 7). (x + 5)
c) (2x + 1). (6x + 3)
d) (x + 5). (x - 10)​

Answer 1

Resposta:

a) (x +9). (x-20)

${x}^{2} - 20x + 9x - 180 \\ {x}^{2} - 11x - 180$

b) (x + 7). (x + 5)

${x}^{2} + 5x + 7x + 35 \\ {x}^{2} + 12x + 35$

c) (2x + 1). (6x + 3)

$12 {x}^{2} + 6x + 6x + 3 \\ 12 {x}^{2} + 12x + 3$

d) (x + 5). (x - 10)

${x}^{2} - 10x + 5x - 50 \\ {x}^{2} - 5x - 50$