Answer:
x = 5
Step-by-step explanation:
f(x) = x^3 – 5x^2 + 2x – 10
p/q, q must divide a_n=1 and p must divide a_0= -10
only 1 divide 1, q=1
1, 2, 5, 10 divide -10
possible rational roots:
1, 2, 5, 10
f(1) = -12
f(2) = -18
f(5) = 0
f(10) = 510
zeros: x = 5
