what two numbers multiply to get -216 and add up to get -15?

A postive and negetative number.
in Algebra 1 Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

x+y=-15    or y=-x-15

xy=-216

x*(-x-15)=-216

-x^2 -15x +216=0

or x^2 +15x -216=0

(x-9)*(x+24), so x=9 & -24
by

Related questions

1 answer
what two numbers add up to-13 and multiply to -48?
asked Feb 17, 2013 in Algebra 1 Answers by anonymous | 1.4k views
2 answers
what two numbers add to get 2 and multiply to get -15
asked Apr 13, 2013 in Algebra 1 Answers by anonymous | 1.6k views
2 answers
What two numbers do you multiply to get -252 and add up to -9
asked Mar 1, 2012 in Algebra 1 Answers by anonymous | 2.2k views
1 answer
Any two numbers whose digits add up to 3 or 6
asked May 11, 2013 in Pre-Algebra Answers by anonymous | 814 views
1 answer
what two numbers muliply get -24 and add up to 10?
asked Mar 1, 2012 in Algebra 1 Answers by anonymous | 951 views
2 answers
What two numbers add together to make -20 and times to make 72?
asked Oct 10, 2012 in Geometry Answers by anonymous | 1.1k views
1 answer
what numbers add to-7 and multiply up to -8?
asked Aug 22, 2013 in Algebra 1 Answers by bobbie | 675 views
2 answers
How do I find the area of this triangle?
asked Aug 22, 2019 in Algebra 1 Answers by stevenscottoddballz Level 1 User (120 points) | 626 views
1 answer
x^5+2x^4-3x^3-8x^2-4x
asked Dec 2, 2013 in Algebra 1 Answers by miki19888888 | 599 views
3 answers
Prove that x ± y = b?
asked Jul 1, 2013 in Algebra 2 Answers by raybite Level 1 User (120 points) | 853 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. complete the following. 825 use each digit once .make the two smallest 3 digit numbers and two largest 3-digit number (2)
  4. Solve 15 -1(12÷4+1)? (4)
  5. 8:4(5+2) (3)

Most popular tags

87,542 questions
99,812 answers
2,417 comments
523,722 users