According to the Rational Root Theorem, the following are potential roots of f(x) = 6x4 + 5x3 - 33x2 β 12x + 20.Which is an actual root of f(x)?a) -5/2b) -2c) 1d) 10/3β
Accepted Solution
A:
Answer:a) -5/2.Step-by-step explanation:Try substituting (-5/2) into f(x):6(-5/2)^4 + 5(-5/2)^3 - 33(-5/2)^2 - 12(-5/2) + 20 = 234.375 + -78.125 - 206.25 + 30 + 20= 0.So it is -5/2.