Find the Formula and Limit as Requested $f ( x ) = 6 x ^ { 2 } + 2$

Find the formula and limit as requested.
-For the function $f ( x ) = 6 x ^ { 2 } + 2$ , find a formula for the upper sum obtained by dividing the interval $[ 0,3 ]$ into $n$ equal subintervals. Then take the limit as $n \rightarrow \infty$ to calculate the area under the curve over $[ 0,3 ]$ .

A) $6 + \frac { 324 n ^ { 3 } + 486 n ^ { 2 } + 162 n } { 6 n ^ { 3 } } ;$ Area $= 60$
B) $6 + \frac { 324 n ^ { 3 } + 486 n ^ { 2 } + 162 n } { 6 n ^ { 3 } } ;$ Area $= 54$
C) $6 + \frac { 324 n ^ { 3 } + 486 n ^ { 2 } + 162 n } { 6 n ^ { 4 } } ;$ Area $= 6$
D) $6 + \frac { 324 n ^ { 3 } + 486 n ^ { 2 } + 162 n } { 6 n ^ { 4 } } ;$ Area $= 60$