Which second degree polynomial function has a leading coefficient of 2 and roots negative 3 and 5 ?
A
f of x is equal to 2 x squared minus 2 x minus 15B
f of x is equal to 2 x squared plus 4 x minus 30C
f of x is equal to 2 x squared plus 2 x minus 15D
f of x is equal to 2 x squared minus 4 x minus 30