Question:

What 2 numbers when mutiplied together you get 240 and when added get -31?

by  |  earlier

0 LIKES UnLike

or if you want to factor this problem ...

12x^2-31x+20

 Tags:

   Report
Answer The Question I've Same Question Too

5 ANSWERS

Sort By: Date  |  Rating

  1. -16 & -15


  2. For the math behind it::

    ab=240 and a+b=-31

    Substituting

    a(-31-a)=240

    0=a^2 + 31a +240

    0=(a+15)(a+16)

    a=-15 and -16

    When a = -15, b = -16

    When a = -16, b = -15

  3. -16 and -15

    12x^2-31x+20

    (4x-5)(3x-4)

  4. -16 and -15

  5. -15 * -16

    because (-) times (-) you get (+)
You're reading: What 2 numbers when mutiplied together you get 240 and when added get -31?

Question Stats

Latest activity: earlier.
This question has 5 answers.

BECOME A GUIDE

Share your knowledge and help people by answering questions.
Register Now
Unanswered Questions