algebra
posted by Math is TOUGH on .
which of the following is true about the polynomial f(x) = x3 + 9x2 + 24x + 16 ?
a. 1 is a zero
b. 1 is a zero
c. 2 is a zero
d. 2i is a zero

f(2)=8+3648+16=not zero
f(1)=1+924+16= zero, it is a zero.