Question

PLEASE I NEED HELP SO I CAN MOVE ON WITH MY HW

Can you find the zeroes of this function using synthetic division
f(x)=2x^3-10x^2-71x-9 ; 9 (9 being the zero given)


I can do the synthetic but I can do th ac/b chart because it ends up 2/8 and that doesn't work

Answer 1

At the 2/8 part, just use the quadratic formula. If you use it, you should get the other two zeroes:

`-4+(√(14))/(2) \\ -4-(√(14))/(2)`