Answer
$-45$
Work Step by Step
Follow the order of operations, "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction".
$3^3-8\times9=27-8\times9=27-72=-45$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.