Respuesta :

proudethiopian14

Answer:

9.c

10.a

11.c

12.a

13.b

14.b

15.b

1.a -4y+5x+8xy+6y-10xy-8x

we collect like terms so -4y+6y+5x-8x+8xy-10xy

2y-3x-2xy

b.-2x+3y+4xy-(-2x-3y+4xy)

-2x+3y+4xy+2x+3y-4xy

-2x+2x+3y+3y+4xy-4xy

3y+3y=6y

Answer:

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