If we express 2x^2 + 6x + 11 in the form a(x - h)^2 + k, then what is h?
2x^2 + 6x + 11 do a little re-arranging
2 (x^2 + 3x) + 11 now, complete the square for 'x'
2 (x+1.5)^2 - 4.5 + 11
2 (x+ 1.5)2 + 6.5 Now you can see h = - 1.5
+37159 
