Friday, July 2, 2010

Note on Multiplying Exponents in Math

In this lesson let me help you go through on multiplying exponents in math. I hope you will enjoy reading this and do practice this at home. so that you become quite familiear to all the sollution.
Introduction:
In math, exponents are used to indicate repeated multiplying the same number. Dealing with positive and negative exponents and simplifying expressions dealing with them is simply a matter of remembering what the definition of an exponent is.
  • A positive exponent means repeated multiplying.
  • A negative exponent means the opposite of repeated multiplying, which is repeated division
Multiplying Exponents
Exponents or Indices are used to tell how many times a factor must be multiplied by itself. The factor may be a number (constant) or a variable. Consider 9². The factor is 9 and is called as the base and the exponent or the index is 2. It means 9 must be multiplied 2 times 9 × 9.
We can also multiply the factors in exponential notation.Multiplication of variables or constants with exponents is simple and the process is the same for both numbers and variables. For example,
(2²)(2²) = 2 × 2 × 2 × 2
= 24
(x²)(x²) = x • x • x • x
= x4
If m is a positive integer and a є Real Number Set and a ≠ 0, then a × a × a × … m times is am and a × a × a ×…. n times is anand the product of am and an is
am × an = (a × a × a × … m times) (a × a × a ×…. n times)

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