Question 586340
f(x)= x^3+9x^2-4x-36 
this problem is to find all the real zeros of the function, but the function doesn't equal 0 when i use synthetic division. How do i go further with this problem?
--------------
x^3+9x^2-4x-36 can be factored.
Notice the coefficients 1 & 9,  and -4 & -36