Question

Y=-1/2(x+ 5)^2-2 Step by Step HELP

Answer 1

Frst opening formula : (a+b)^2=a^2+b^2+2ab
=-1/2[x^2+25+10x]-2
=-(x^2/2)-(25/2) -(5x)-(2) 0r =-1/2[x^2+25+10x+4]
                                             =-1/2[x^2+10x+29]

Answer 2

$y=-\frac{1}{2}(x+5)^2-2\\ y=-\frac{1}{2}(x^2+10x+25-2)\\ y=-\frac{1}{2}(x^2+10x+23)$

this is not factorable so you must apply the quadratic formula and you'll end up with 

x=-5-2i
x=-5+2i