Find the Derivative Of $f ( x ) = \frac { 1 + x } { 5 + 6 x + 7 x ^ { 2 } }$

question 64

Multiple Choice

Find the derivative of $f ( x ) = \frac { 1 + x } { 5 + 6 x + 7 x ^ { 2 } }$ .

• A) \(- \frac { 1 + 7 x } { \left( 5 + 6 x + 7 x ^ { 2 } \right) ^ { 2 } }\)
• B) \(- \frac { 1 + 14 x + 7 x ^ { 2 } } { \left( 5 + 6 x + 7 x ^ { 2 } \right) ^ { 2 } }\)
• C) \(- \frac { 11 + 26 x + 21 x ^ { 2 } } { \left( 5 + 6 x + 7 x ^ { 2 } \right) ^ { 2 } }\)
• D) \(\frac { 1 } { 6 + 14 x }\)

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