Solve the Problem $f ( x ) = 6 x ^ { 2 } - 5 x$

Multiple Choice

Solve the problem.
-If $f ( x ) = 6 x ^ { 2 } - 5 x$ and $g ( x ) = 2 x + 3$ , solve $f ( x ) \leq g ( x )$ .

A) $\left( - \frac { 1 } { 3 } , \frac { 3 } { 2 } \right)$
B) $\left[ - \frac { 1 } { 3 } , \frac { 3 } { 2 } \right]$
C) $\left[ - \frac { 3 } { 2 } , \frac { 1 } { 3 } \right]$
D) $\left[ - \frac { 1 } { 3 } , \frac { 3 } { 2 } \right]$