Solve by Factoring w^2-2w=15

Solve by Factoring w^2-2w=15
Move to the left side of the equation by subtracting it from both sides.
Factor using the AC method.
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Consider the form . Find a pair of integers whose product is and whose sum is . In this case, whose product is and whose sum is .
Write the factored form using these integers.
If any individual factor on the left side of the equation is equal to , the entire expression will be equal to .
Set the first factor equal to and solve.
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Set the first factor equal to .
Add to both sides of the equation.
Set the next factor equal to and solve.
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Set the next factor equal to .
Subtract from both sides of the equation.
The final solution is all the values that make true.
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Name

Name one billion seven hundred twenty-eight million eight hundred sixty-seven thousand four hundred fifty-five

Interesting facts

  • 1728867455 has 4 divisors, whose sum is 1778263704
  • The reverse of 1728867455 is 5547688271
  • Previous prime number is 35

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 53
  • Digital Root 8

Name

Name one billion one hundred seventeen million sixty-six thousand fifteen

Interesting facts

  • 1117066015 has 16 divisors, whose sum is 1447336800
  • The reverse of 1117066015 is 5106607111
  • Previous prime number is 389

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 28
  • Digital Root 1

Name

Name one billion nine hundred thirty-five million five hundred fifty-nine thousand seven hundred seven

Interesting facts

  • 1935559707 has 8 divisors, whose sum is 2623053840
  • The reverse of 1935559707 is 7079555391
  • Previous prime number is 61

Basic properties

  • Is Prime? no
  • Number parity odd
  • Number length 10
  • Sum of Digits 51
  • Digital Root 6