Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

happykiddo

  • 3 years ago

Could someone please tell me what are two numbers that multiply to -140 and add together to 4?

  • This Question is Closed
  1. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1364524020116:dw|are you sure it is not subtract to make 140

  2. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1364524067794:dw|is it like this?

  3. happykiddo
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes its x^2+4x-140

  4. tomhoffhim
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the numbers have to be really close to one another

  5. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    always list your factors don't worry about the signs

  6. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1364524588051:dw|x times x gives you x^2

  7. tomhoffhim
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    14 and -10

  8. kelliegirl33
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    (x - 10)(x + 14) a + b = 4 14 - 10 = 4 a x b = -140 (14)(-10) = - 140 14 and - 10

  9. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1364524606341:dw|

  10. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the sign in front of 140 is negative and that tells you to subtract your factors

  11. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1364524645117:dw|

  12. happykiddo
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    geez its -10 and 14 How did i miss that. Thanks to all that helped

  13. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1364524677588:dw|

  14. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    to have a negative your sign choices are (-)(+) +14-10 or -14+10

  15. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    we need +4 so we must use +14-10=+4

  16. precal
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    |dw:1364524736862:dw|signs give us the middle term

  17. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy