Answer:
[tex]( - {x}^{2} + 2x) - ( {x}^{2} - 2x) \\ ( - {x}^{2} + 2x) + ( - {x}^{2} + 2x) \\ = - 2 {x}^{2} + 4x[/tex]
I hope I helped you^_^
2x^2+4x or just 4x doesn't matter.
Step-by-step explanation:
Hope this helps