Find the value of (f+g)(-1)

If f(x)=3x^2-2 and g(x)=4x+2, what is the value of (f+g)(-1)?
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Put x=-1 in f(x)=3x^2-2=1 and in g(x)=4x+2=-2; so (f+g)(-1)=1-2=-1.
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