According to the rational root theorem, which number is a potential root of f(x) = 9x8 9x6 – 12x 7?

The options of the problem are

we have

we know that

The Rational Root Theorem states that when a root 'x' is written as a fraction in lowest terms

p is an integer factor of the constant term, and q is an integer factor of the coefficient of the first monomial.

So

in this problem

the constant term is equal to

and the first monomial is equal to -----> coefficient is

therefore

the answer is the option

D.

step-by-step explanation:

1

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