Rewrite y=2x2−8x+3y = 2x^2 - 8x + 3y=2x2−8x+3 in vertex form y=a(x−h)2+ky = a(x-h)^2 + ky=a(x−h)2+k. What is h+kh + kh+k?
−3-3−3
−1-1−1
111
555