Question 1147895
complete the square
:
y = 2x^2 +12x +16
:
y -16 = 2x^2 +12x
:
y -16 = 2(x^2 +6x)
:
y -16 +18 = 2(x^2 +6x +9)
:
y = 2(x +3)^2 -2
:
{{{ graph( 300, 200, -10, 19, -10, 10, 2x^2 -12x +16) }}}
: