Respuesta :

Answer: a. 2(11a+14)

b. 47x-17

c. x^2+5x

d. x(x+8)

Step-by-step explanation:

a. 2a+4(7+5a)=

2a+4*7+4(5a)=

2a+28+20a=

22a+28=2(11a+14)

b. 4(3x+2)-5(7x+5)=

12x+8-35x-25=

12x+35x+8-25=47x-17

c. x(x+5)=x^2+5x

d. 2x+x(x+6)=

2x+x^2+6x=

x^2+8x=x(x+8)

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