Ask Question
Yesterday, 23:52

The volume of a rectangular box is (x3 - 7x2 - 9x + 63) cubic units. Determine the dimensions of the rectangular box by factoring the volume expression completely.

+5
Answers (1)
  1. Today, 01:22
    0
    Hello,

    well done.

    As x^3-7x²-9x+63 = (x-3) (x+3) (x-7) we must have x>3 and x>-3 and x>7 thus x>7

    Explanations:

    x^3-7x²-9x+63=x^3-9x + (-7x²+63) = x (x²-9) - 7 (x²-9) = (x²-9) (x-7) = (x+3) (x-3) (x-7)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “The volume of a rectangular box is (x3 - 7x2 - 9x + 63) cubic units. Determine the dimensions of the rectangular box by factoring the ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers