question_answer

Simplify : \[(5{{x}^{2}}-6{{x}^{2}})+(2{{x}^{2}}-3{{x}^{2}})\]

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

B)  \[-\,2{{x}^{2}}\]

C)  \[11{{x}^{2}}\]                     

D)  \[-\,11{{x}^{2}}\]

E)  None of these