find the zero of f (x) = x³-5x²-x+5 by factoring
A) x= -1,1
B) x= -2,2,5
C) x= -1,1,5
D) x= -1,1,3
we have
f(x) = x³-5x²-x+5
using a graphing tool
the zeros of the function are
x=-1, x=1 and x=5
so
f(x)=(x+1)(x-1)(x-5)
therefore
The answer is the option C