We are given the following expression
[tex]3x^2+5x-9x+2[/tex]
Let us simplify the above expression
[tex]\begin{gathered} 3x^2+5x-9x+2 \\ 3x^2-4x+2 \end{gathered}[/tex]
As you can see, the sum of the terms 5x and -9x is equal to -4x
Therefore, the simplified expression is
[tex]undefined[/tex]
