Find all real zeros (estimate the irrational zeros to the nearest hundredth).
-$f ( x ) = 3 x ^ { 3 } - 18 x ^ { 2 } + 5 x - 30$
A)6, -1.29, 1.29
B)6
C)-1.29, 1.29
D)1.29, 6

Question

Quizplus · Accepted Answer

The polynomial $f(x) = 3x^3 - 18x^2 + 5x - 30$ has a real zero at $x = 6$. The other roots are complex, not real, so they cannot be estimated as irrational real zeros.

Find All Real Zeros (Estimate the Irrational Zeros to the Nearest