Question 831475

{{{H(a) =   a+3}}}
{{{G(a)=   a^2+2a}}}
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{{{H(-2) =   -2+3=1}}}
{{{G(-2)=   (-2)^2+2(-2)=4-4=0}}}
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{{{H(-2)*G(-2)=1(0)=0}}}