Let $f ( x ) = \frac { 4 } { 3 } x ^ { 3 } + 11 x ^ { 2 } + 10 x + 4$

question 139

Essay

Let $f ( x ) = \frac { 4 } { 3 } x ^ { 3 } + 11 x ^ { 2 } + 10 x + 4$ . For what value of x is $f ^ { \prime } ( x ) = 3 ?$

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