Question

calcule
a)(3x+5) (4x+6)=
b) (2x-8) ( - 5 x-10)=
c)(2x+7) (4x-8)=
d)(4x+9) (-5x-3)=​

Answer 1

Resposta:

a) 12x²+38x+30

b) -10x²+20x+80

c) 14x²+12x-56

d) -20x²+57x-27

Explicação passo-a-passo:

Answer 2

Oi....

Calcule:

 

a)

(3x+5) (4x+6)

12x² + 18x + 20x + 30

12x² + 38x + 30

b)

(2x-8) ( - 5 x-10)

- 10x² - 20x + 40x + 80

- 10x² + 20x + 80

c)

(2x+7) (4x-8)

8x² - 16x + 28x - 56

8x² + 12x - 56

d)

(4x+9) (-5x-3)

- 20x² - 12x - 45x - 27

- 20x² - 57x - 27

Espero ter colaborado.