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24-03-2016
Mathematics

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F(x)=-x+4 and g(x)=-2x-3 solve for f(g(x)) x=2

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24-03-2016

input
f(g(x))=-(g(x))+4=
g(x)=-2x-3
so
if x=2
f(g(2))=-(g(2))+4
g(2)=-2(2)-3=-4-3=-7

f(g(2))=-(-7)+4=7+4=11

f(g(2))=11

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