Question

2. Desarrolla los siguientes productos:
b) (y - 10)(2x + 3y +9)
a) (3x + 5)(-2x - 7y + 11)
d) (-x + 10)(xy + 2x + 3y)
c) (5x + 3y)(4x - 6y - 3)​

Answer 1

Explicación paso a paso:

a) (3x + 5)(-2x - 7y + 11)

-2x-7y+11

3x+5

-------------

-6x^2-21xy+33x

-10x-35y+55

---------------------------------

-6x^2+23x-21xy-35y+55

b) (y - 10)(2x + 3y +9)

2x + 3y +9

y-10

----------------

2xy+3y^2+9y

-20x-30y-90

----------------------------

-20x+2xy+3y^2-21y-90

c) (5x + 3y)(4x - 6y - 3)

4x - 6y - 3

5x+3y

----------------

20x^2 - 30xy-15x

+ 12xy-18y^2-9y

-------------------------------

20x^2-15x-18xy-18y^2-9y

d) (-x + 10)(xy + 2x + 3y)

xy + 2x + 3y

-x+10

------------------

-x^2 y - 2x^2 - 3xy

+10xy+20x+30y

------------------------------------

-2x^2+20x-x^2 y +7xy +30y