Express the Quadratic Function in Standard Form $f ( x ) = 2 x ^ { 2 } + 8 x + 9$

Multiple Choice

Express the quadratic function in standard form. $f ( x ) = 2 x ^ { 2 } + 8 x + 9$

A) $f ( x ) = 2 ( x + 4 ) ^ { 2 } + 9$
B) $f ( x ) = ( x + 2 ) ^ { 2 } + 2$
C) $f ( x ) = 2 ( x + 1 ) ^ { 2 } + 1$
D) $f ( x ) = 2 ( x + 1 ) ^ { 2 } + 2$
E) none of these