QuestionExpand the expression to a polynomial in standard form: $$(2 x+1)\left(-3 x^{2}-x+9\right)$$

Studdy Solution
Combine like terms to get the polynomial in standard form.
$$-6x^3 + (-2x^2 - 3x^2) + (18x - x) + 9$$
$$= -6x^3 - 5x^2 + 17x + 9$$
The expanded polynomial in standard form is:
$$-6x^3 - 5x^2 + 17x + 9$$