Which function in vertex form is equivalent to f of x is equal to x squared plus 8 minus 16 x ?
A
f of x is equal to open paren x minus 4 close paren squared plus 0B
f of x is equal to open paren x minus 8 close paren squared minus 56C
f of x is equal to open paren x plus 8 close paren squared minus 72D
f of x is equal to open paren x plus 4 close paren squared minus 32