Respuesta :
Step-by-step explanation:
a) (2x2+3y)+(y+2x-4)
(4+3y)+(y+2x-4)
4+3y+y+2x-4 this mean negative times positive is negative
4-4+3y+y+2x
0+4y+2x
4y+2x
I think this is the answer but I am not sure
B
Like terms have same variable with same power In 2x^2 +3y and 5y+3x^2 ,
2x^2 and 3x^2 are like terms and
3y and 5y are like terms
Like terms have same variable with same power In 2x^2 +3y and 5y+3x^2 ,
2x^2 and 3x^2 are like terms and
3y and 5y are like terms