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Given f(x)=2x^2−3 and g(x)=x+4. What is (fg)(x) ?

Given f(x)=2x^2−3 and g(x)=x+4. What is (fg)(x) ?
asked 181k views
3 votes
Given f(x)=2x^2−3 and g(x)=x+4. What is (fg)(x) ?

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User WetFish
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1 Answer

4 votes
To solve a composite function like this one you have take whatever g(x) is and substitute it for every x in f(x).

f(g(x))= 2(x+4)^2-3


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User Nesizer
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