English subtitles

← Exponent Practice - College Algebra

Get Embed Code
2 Languages

Showing Revision 3 created 05/25/2016 by Udacity Robot.

  1. Since we have parentheses around the negative 3 here and the exponent, the 4 is
  2. written outside of those parentheses. That means that the exponent applies to
  3. the entire quantity that's inside the parentheses. So, the number that counts as
  4. the base number is negative 3. Negative 3 is the thing that we want to multiply
  5. by itself 4 times. So, that means we can rewrite this. As negative 3 times
  6. negative 3 times negative 3 times negative 3. Now you can just evaluate that
  7. numerically. Negative 3 times negative 3 is just positive 9. So you get positive
  8. 9 multiplied by itself which is just equal to 81. So our final answer is 81