Question 991050


 {{{f(x)=x^2+6 and {{{g(x)=sqrt(x+1)}}}

    {{{(f o g )(-5) = f( g(-5))}}}

{{{(f o g )(-5) = f( sqrt(-5+1))}}}

{{{(f o g )(-5) = f( sqrt(-4))}}}

{{{(f o g )(-5) = f( 2i)}}}

{{{(f o g )(-5) = ( 2i)^2+6}}}

{{{(f o g )(-5) = 4i^2+6}}}

{{{(f o g )(-5) = 4(-1)+6}}}

{{{(f o g )(-5) = -4+6}}}

{{{(f o g )(-5) = 2}}}