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Find (g•f)(3) F(x)=|x+2| g(x)=-x^2
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3 votes
Find (g•f)(3)
F(x)=|x+2|
g(x)=-x^2

Find (g•f)(3) F(x)=|x+2| g(x)=-x^2-example-1
User Joel Costigliola
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5.5k points

1 Answer

2 votes

f(x)=|x+2|\\\\g(x)=-x^2\\\\(g\circ f)(x)=-x^2|x+2|=-|x^2|\cdot|x+2|=-|x^2(x+2)|=-|x^3+2x^2|\\\\(g\ \circ\ f)(3)=-|3^3+2(3)^2|=-|27+2(9)|=-|27+18|=-45
User Nadeem Khoury
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6.0k points
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