Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 5x − 1). If the final answer is written in the form Ax2 + Bx + C, what is the value of A?

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Answer for Blank 1:

Question

Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 5x − 1). If the final answer is written in the form Ax2 + Bx + C, what is the value of A?

Numerical Answers Expected!

Answer for Blank 1:

michele_laino · Answer

hint:
we can write:
$$\Large \begin{gathered}
  \left( {5{x^2} + 3x + 4} \right) - \left( {2{x^2} + 5x - 1} \right) =  \hfill \
   \hfill \
   = 5{x^2} + 3x + 4 - 2{x^2} - 5x + 1 = ... \hfill \ 
\end{gathered} $$
please, simplify

michele_laino · Answer

you have to combine similar terms