Simplify (a^2-100)/(3a)*(a^2)/(2a-20)

Simplify (a^2-100)/(3a)*(a^2)/(2a-20)
Simplify the numerator.
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Rewrite as .
Since both terms are perfect squares, factor using the difference of squares formula, where and .
Simplify terms.
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Factor out of .
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Factor out of .
Factor out of .
Factor out of .
Cancel the common factor of .
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Factor out of .
Factor out of .
Cancel the common factor.
Rewrite the expression.
Cancel the common factor of .
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Factor out of .
Factor out of .
Cancel the common factor.
Rewrite the expression.
Multiply and .
Simplify the expression.
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Multiply by .
Reorder factors in .
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Name

Name two billion one hundred thirty-eight million two hundred eighty-eight thousand four hundred one

Interesting facts

  • 2138288401 has 4 divisors, whose sum is 2143516900
  • The reverse of 2138288401 is 1048828312
  • Previous prime number is 409

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 37
  • Digital Root 1

Name

Name one billion two hundred ninety million eight hundred ninety-one thousand two hundred five

Interesting facts

  • 1290891205 has 8 divisors, whose sum is 1568678400
  • The reverse of 1290891205 is 5021980921
  • Previous prime number is 79

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 37
  • Digital Root 1

Name

Name six hundred eighty-three million twenty thousand two hundred fifty-one

Interesting facts

  • 683020251 has 8 divisors, whose sum is 765628560
  • The reverse of 683020251 is 152020386
  • Previous prime number is 113

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 9
  • Sum of Digits 27
  • Digital Root 9