question_answer

Find the sum of \[5{{x}^{2}}-\frac{x}{3}+\frac{5}{2},\]\[\frac{-1}{2}{{x}^{2}}+\frac{x}{2}-\frac{1}{3}\]and\[-2{{x}^{2}}-\frac{x}{5}-\frac{1}{6}\].

A)  \[\frac{2}{3}{{x}^{2}}-\frac{7x}{11}+1\]      

B)  \[\frac{5}{2}{{x}^{2}}+\frac{11}{30}x+2\]

C)  \[\frac{1}{5}{{x}^{2}}+\frac{13x}{30}+3\]   

D)  \[\frac{1}{3}{{x}^{2}}+\frac{2}{3}x+5\]

E)  None of these