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For the Given Functions F(x) and G(x), Find F(x) ∙ f(x)=x34x2+2x+7,g(x)=5x3f ( x ) = x ^ { 3 } - 4 x ^ { 2 } + 2 x + 7 , g ( x ) = - 5 x ^ { 3 }

Question 147

Multiple Choice

For the given functions f(x) and g(x) , find f(x) ∙ g(x) .
- f(x) =x34x2+2x+7,g(x) =5x3f ( x ) = x ^ { 3 } - 4 x ^ { 2 } + 2 x + 7 , g ( x ) = - 5 x ^ { 3 }


A) 5x9+20x610x435x3- 5 x ^ { 9 } + 20 x ^ { 6 } - 10 x ^ { 4 } - 35 x ^ { 3 }
B) 5x920x6+10x4+35x3- 5 x ^ { 9 } - 20 x ^ { 6 } + 10 x ^ { 4 } + 35 x ^ { 3 }
C) 5x620x5+10x4+35x3- 5 x ^ { 6 } - 20 x ^ { 5 } + 10 x ^ { 4 } + 35 x ^ { 3 }
D) 5x6+20x510x435x3- 5 x ^ { 6 } + 20 x ^ { 5 } - 10 x ^ { 4 } - 35 x ^ { 3 }

Correct Answer:

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