Solve Using the Quadratic Formula 4x^2-8=0

Solve Using the Quadratic Formula 4x^2-8=0
Use the quadratic formula to find the solutions.
Substitute the values , , and into the quadratic formula and solve for .
Simplify.
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Simplify the numerator.
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Raising to any positive power yields .
Multiply by .
Multiply by .
Add and .
Rewrite as .
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Factor out of .
Rewrite as .
Pull terms out from under the radical.
Multiply by .
Simplify .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
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Name

Name two hundred ninety-four million seventy-three thousand seven hundred eighty-seven

Interesting facts

  • 294073787 has 16 divisors, whose sum is 345461760
  • The reverse of 294073787 is 787370492
  • Previous prime number is 79

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 9
  • Sum of Digits 47
  • Digital Root 2

Name

Name eight hundred eighteen million three hundred sixty-seven thousand eighty-eight

Interesting facts

  • 818367088 has 128 divisors, whose sum is 4757628960
  • The reverse of 818367088 is 880763818
  • Previous prime number is 209

Basic properties

  • Is Prime? no
  • Number parity even
  • Number length 9
  • Sum of Digits 49
  • Digital Root 4

Name

Name six hundred sixty-three million three hundred nine thousand four hundred seventy-three

Interesting facts

  • 663309473 has 4 divisors, whose sum is 664295748
  • The reverse of 663309473 is 374903366
  • Previous prime number is 673

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 9
  • Sum of Digits 41
  • Digital Root 5