Use the rational root theorem to list all possible rational roots for the equation. x^3+2x-9=0.

Using the Rational Roots(Zeros) Theorem, which states that, if the polynomial has integer coefficients, then every rational zero of has the form where is a factor of the constant term   and   is a factor of the leading coefficient  .

Here,

which are all factors of constant term

which are the factors of the leading coefficient

All possible values are

No values are leading to zeros hence, none of these can be roots of the equation.

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the answer is d. (1.2, -4.7) on edgn

hope this !

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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