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Question

Given that f(x)=5x2−8x,g(x)=x2−5x−24. Find (fg)(x)

A
5xx+1
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B
5x28xx25x24
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C
5x85
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D
5x24
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Solution

The correct option is B 5x28xx25x24
(fg)(x) means f(x)g(x)
Given, f(x)=5x28x and g(x)=x25x24
So, (fg)(x)=5x28xx25x24
Hence, option B is correct.

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