Question
Let $f(x)=x^{2}+4 x \quad \text { and } \quad g(x)=2-x$ Find each of the following.$$(f g)(x)$ and $(f g)(2)$$
Step 1
To do this, we substitute $g(x)$ into $f(x)$, so we get $f(g(x)) = (2-x)^{2}+4(2-x)$. Show more…
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