Respuesta :

Answer:

5x^2 + 4x + 3.

Step-by-step explanation:

While I'm a little confused on what is closed and open parenthesis/brackets, I think I understand what you mean. In (5x^2+3x-2)+(3x-2x+5), the brackets can simply be removed as there is no multiplication between them. This means we get 5x^2 + 3x - 2 + 3x - 2x + 5. Combining like variables, we get 5x^2 + 4x + 3.

diser

Answer:

5x²+4x+3

Step-by-step explanation:

I think, first you start with simplifying no. in the bracket in both sides then remove the bracket work with the remained according to their operation

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