question_answer

Simplify : \[\left( 2{{x}^{2}}\,+\,{{x}^{2}} \right)\,-\,\left( 3{{x}^{2}}\,+\,2{{x}^{2}} \right)\]

A)  \[2{{x}^{2}}\]                       

B)  \[-\,2{{x}^{2}}\] 

C)  \[3{{x}^{2}}\]                                   

D)  \[-\,3{{x}^{2}}\]

E)  None of these