QuestionSimplify the expression: $(4 x^{3}-12 x^{2})+(7 x-21)$.

Studdy Solution
Next, we need to combine like terms. Like terms are terms that have the same variable and exponent. In this case, there are no like terms, so the expression remains the same.
$$x^{3}-12x^{2}+7x-21$$So, the simplified form of the given expression is $x^{3}-12x^{2}+7x-21$.