Question

Please help a girl out (:

According to the rational root theorem, which answer is not a possible rational root of 4x^3+3x^2-2x+12=0?

A.) -4
B.) -1/3
C.) 1/2
D.) 3

Answer 1

the answer is b cause its is correct

Answer 2

B.) -1/3

Explanation:

According to the rational root theorem, rational roots will be of the form ...

±(divisor of the constant)/(divisor of the leading coefficient)

= ±(one of {1, 2, 3, 4, 6, 12})/(one of {1, 2, 4})

You will note that 3 is not among the possible denominators, hence -1/3 is not a possible rational root.