Sunday, July 14, 2013

10:47 AM
 In order to solve any question involving exponents you must remember the 5 basic rules of exponents. Remember them? If not we will help you jog your memory:

Exponent Multiplication Rule:
Exponent Division Rule:
Raising power to power Rule:
Common Exponent Multiplication
Common Exponent Division
Exponent rules are useful for solving any test problem that involves power. Here is a quick example:
Example:
What is the value of  if  ?
A) 1
B) 2
C) 3
D) 4
E) 5
Solution:

Step 1: The bases on both sides are not equal. However we know that ,
Therefore 
Step 2: Our equation can now be written as . Since the bases are equal, we can equate the exponents and solve the linear equation:
  
B is the correct answer.
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