Evaluate (-20+ square root of -75)/40

Evaluate (-20+ square root of -75)/40
Pull out imaginary unit .
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Rewrite as .
Rewrite as .
Rewrite as .
Simplify the numerator.
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Rewrite as .
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Factor out of .
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Pull terms out from under the radical.
Move to the left of .
Simplify terms.
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Cancel the common factor of and .
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Factor out of .
Factor out of .
Factor out of .
Cancel the common factors.
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Factor out of .
Cancel the common factor.
Rewrite the expression.
Rewrite as .
Factor out of .
Factor out of .
Move the negative in front of the fraction.
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Name

Name two billion one hundred million eighty-three thousand eight hundred eighty-seven

Interesting facts

  • 2100083887 has 4 divisors, whose sum is 2291000616
  • The reverse of 2100083887 is 7883800012
  • Previous prime number is 11

Basic properties

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

Name

Name six hundred seven million eight hundred sixty-four thousand nine hundred eighty-two

Interesting facts

  • 607864982 has 8 divisors, whose sum is 911921976
  • The reverse of 607864982 is 289468706
  • Previous prime number is 32003

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 50
  • Digital Root 5

Name

Name two hundred million four hundred seven thousand one hundred forty-two

Interesting facts

  • 200407142 has 32 divisors, whose sum is 340381440
  • The reverse of 200407142 is 241704002
  • Previous prime number is 139

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 20
  • Digital Root 2