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If f(x)=4x22x7f ( x ) = 4 x ^ { 2 } - 2 x - 7

Question 105

Multiple Choice

If f(x) =4x22x7f ( x ) = 4 x ^ { 2 } - 2 x - 7 , use synthetic division to evaluate f(78) f \left( \frac { 7 } { 8 } \right) .


A) f(78) =212f \left( \frac { 7 } { 8 } \right) = \frac { 21 } { 2 }

B) f(78) =212f \left( \frac { 7 } { 8 } \right) = - \frac { 21 } { 2 }

C) f(78) =9116f \left( \frac { 7 } { 8 } \right) = - \frac { 91 } { 16 }

D) f(78) =352f \left( \frac { 7 } { 8 } \right) = - \frac { 35 } { 2 }

E) f(78) =778f \left( \frac { 7 } { 8 } \right) = - \frac { 77 } { 8 }

Correct Answer:

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