Answer:
[tex]6x - {4x}^{2} [/tex]
Step-by-step explanation:
first put it into an equation
[tex]5x - {x}^{2} - ( {3x}^{2} - x)[/tex]
remember to put the 3x^2-x into brackets
[tex]5x - {x}^{2} - {3x}^{2} + x[/tex]
now we add like terms
[tex]6x - {4x}^{2} [/tex]