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OpenStudy (anonymous):
if g(x)<0 for all x and if f(x)=(x^2-4)*g(x), then find for what x is f(x)>0. please help...explanations too please.
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OpenStudy (anonymous):
It must be :x^2-4<0 <=> -2<x<2 because - * - =+
OpenStudy (anonymous):
wait whats <=>
OpenStudy (anonymous):
equivalent
OpenStudy (anonymous):
so is the answer -2<x<2?
OpenStudy (anonymous):
yup
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