Question

According to the Rational Root Theorem, which function has the same set of potential rational roots as the function g(x) = 3x^5 – 2x^4 + 9x^3 – x^2 + 12?

Answer 1

f(x) = 3x^5 – 2x^4 – 9x^3 + x^2 – 12
f(x) = 3x^6 – 2x^5 + 9x^4 – x^3 + 12x
f(x) = 12x^5 – 2x^4 + 9x^3 – x^2 + 3
f(x) = 12x^5 – 8x^4 + 36x^3 – 4x^2 + 48

Answer 2

pick the one with the same leading coefficient and constant (ignoring the signs)