Ask Question
24 December, 00:01

What numbers add up to 2 and multiply to get - 15?

+2
Answers (1)
  1. 24 December, 03:50
    0
    Set up 2 equations

    A) x + y = 2

    B) x * y = - 15

    We can change equation B into x = - 15/y and substitute this into equation A

    -15/y + y = 2

    -15 + y^2 = 2y

    y^2 - 2y - 15 = 0

    Factoring

    (y + 3) * (y-5) = 0

    y = - 3 and y = 5

    Then solve for x
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “What numbers add up to 2 and multiply to get - 15? ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers